| Principal Mineral(s) | Formula |  |
Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | Reference # | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quartz and Kaolin Geode | Formula | /Images/picture.jpg | Keokuk, Lee County, Iowa | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4000 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Anatase | Formula | /Images/picture.jpg | Anatase-rutile occurrence, Cuiabá, Gouveia, Minas Gerais, Brazil | Collected 2003, acquired 2011 | Anatase | Rutile | From the collection of Walt Kellogg. | 4001 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Bauxite | Formula | /Images/picture.jpg | Arkansas | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Jim Below. | 4002 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Kimberlite | Formula | /Images/picture.jpg | Lake Ellen Kimberlite prospect, Lake Ellen, Iron Co., Michigan | Collected between 1971 and 2011, acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Bill Heyworth. The specimen was labeled "Michigan Diamond Ore". | 4003 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Vanadinite | Formula | /Images/picture.jpg | Jo Jo Mine, Radersburg Mining District (Cedar Plains Mining District; Lone Mountain Mining District), Broadwater Co., Montana | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Chris Tucker. | 4004 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Apatite | Formula | /Images/picture.jpg | Pakistan | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Keith Hayes. | 4005 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Kaolin Geode | Formula | /Images/picture.jpg | Keokuk, Lee County, Iowa | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4006 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Eurekadumpite | Formula | /Images/picture.jpg | Centennial Eureka Mine, Eureka, Tintic Mining District, Juab County, Utah | acquired 2011 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen for Eurekadumpite. From the collection of Wayne and Dona Leicht (Kristalle); DTG1057 web# BL1547. | 4007 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Richelsdorfite | Formula | /Images/picture.jpg | Schnepfenbusch Mine (Schnepfenbach Mine), Bauhaus, Nentershausen, Hersfeld-Rotenburg, Kassel Region, Hesse, Germany | acquired 2011 | Matrix | Roselite | From the collection of Walt Kellogg. | 4008 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Blatonite | Formula | /Images/picture.jpg | Jomac Mine, White Canyon Mining District, San Juan County, Utah | Collected after 1997, acquired 2011 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen for Blatonite. From the collection of John Betts (#52248). | 4009 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Cobaltite | CoAsS/td> | /Images/picture.jpg | Ontario, Canada | acquired 2011 | Matrix | Secondary Mineral(s) | Comments | 4010 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Cobaltite | CoAsS/td> | /Images/picture.jpg | Ontario, Canada | acquired 2011 | Matrix | Secondary Mineral(s) | Comments | 4011 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Inderite var. Lesseritre | Formula | /Images/picture.jpg | Jenifer Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern Co., California | Collected July 23, 1959, acquired 2011 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen for Lesserite. From the collection of John Betts (#53589). Collected by Peter B. Nalle. | 4012 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Tincalconite | Formula | /Images/picture.jpg | Baker Mine, Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California | Collected 1979, acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Linda St. Cyr (#TpB11-15). Collected by Julie Siebel and J. Minette. | 4013 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fluoro-leakeite | Formula | /Images/picture.jpg | Norra Karr, Granna, Jonkoping, Jonkoping County, Sweden | acquired 2009 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen. From the collection of Linda St. Cyr (Middle Earth Minerals) #ECKER9-1. Specimen was sold as Eckermannite from the Type Locality; in 2015 the holotype specimen was reexamined and found to contain Lithium and was renamed Fluoro-leakeite (retaining Type Locality for the new mineral). | 4014 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gold Ore | Formula | /Images/picture.jpg | Colorado | Acquired September 2017 | Matrix | Secondary Mineral(s) | This bag of gold ore was purchased in the gift shop of the Georgetown Loop Railroad. | 4015 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gold | Formula |  ,
 ,
 |
Goldbottom Tours Claim, Dawson mining district, Yukon, Canada | September 1, 2015 at 1:05 pm | Matrix | Secondary Mineral(s) | Collected by Kreigh Tomaszewski. | 4016 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Actinolite | Formula | /Images/picture.jpg | Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska | acquired 2015 | Matrix | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4017 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Talc | Formula | /Images/picture.jpg | Alaska | acquired 2015 | Matrix | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4018 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Naticidae var. Moon Snail fossil | Formula | /Images/picture.jpg | Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska | acquired 2015 | Limestone | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4019 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Bornite | Formula |  |
Alaska | acquired 2015 | Matrix | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4020 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Granite with Xenoliths | Formula |  |
Alaska | acquired 2015 | Matrix | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4021 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula |  |
Alaska | acquired 2015 | Shale | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4022 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Jasper | Formula |  |
Alaska | acquired 2015 | Matrix | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4023 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Garnet | Formula | /Images/picture.jpg | Salmon Bay, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska | acquired 2015 | Schist | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4024 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Garnet | Formula | /Images/picture.jpg | Salmon Bay, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska | acquired 2015 | Schist | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). | 4025 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Barrerite | Formula |  |
Hound Island breccia, Kuiu Island, Petersburg Borough, Alaska | acquired 2015 | Matrix | Secondary Mineral(s) | From the collection of the Back Alley Rock Shop (Skagway, AK). Collected by Istvan and Mary J Toth. | 4026 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ilvaite | Formula | /Images/picture.jpg | Cape Calamita Mine, Capoliveri, Livorno Province, Tuscany, Italy | Collected before 2010, acquired 2023 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen for Ilvaite. From the collection of John Betts (#83026). From the collection of Mary and Gardner Miller of Missoula, Montana (#T502). From the collection of Tony Nickischer (Excalibur Minerals) in 2010. | 4027 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Elbaite | Formula | /Images/picture.jpg | Clark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts | acquired 2023 | Albaite var. Cleavelandite | Secondary Mineral(s) | This is a Type Locality specimen for Cleavelandite: (FRL) - first recorded locality of unapproved mineral/variety/etc.. From the collection of John Betts (#82976). From the collection of Mary and Gardner Miller of Missoula, Montana (#T748). From the collection of Eric Greene (#Sil-460). | 4028 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyroxmangite | Formula | /Images/picture.jpg | Taguchi mine, Shitara, Kitashitara County, Aichi Prefecture, Japan | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Walt Kellogg. | 4029 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Halite | Formula | /Images/picture.jpg | American Salt & Coal Company Mine, Lyons, Rice Co., Kansas | acquired 2011 | Matrix | Cubic water bubble inclusions | From the collection of Walt Kellogg. | 4030 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Datolite var. Porcelain | Formula | /Images/picture.jpg | Keweenaw Point, Keweenaw County, Michigan | acquired 2011 | Matrix | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4031 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Jaspillite | Formula | /Images/picture.jpg | Locality | acquired around 2012 | Matrix | Secondary Mineral(s) | Comments | 4032 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pegmatite | Formula | /Images/picture.jpg | Locality | acquired around 2012 | Matrix | Secondary Mineral(s) | Comments | 4033 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Calcite | Formula | /Images/picture.jpg | Locality | acquired around 2012 | Matrix | Secondary Mineral(s) | Comments | 4034 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Copper | Formula | /Images/picture.jpg | Keweenaw County, Michigan | acquired around 2012 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item collected by Don Van Dyke. Specimen shows imprints of calcite crystals. | 4035 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Smokey Quartz | Formula | /Images/picture.jpg | Locality | acquired around 2016 | Matrix | Secondary Mineral(s) | Comments | 4036 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Smokey Quartz | Formula | /Images/picture.jpg | Locality | acquired around 2016 | Matrix | Secondary Mineral(s) | Comments | 4037 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Black Tiger's Eye | Formula | /Images/picture.jpg | Locality | acquired around 2016 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item. | 4038 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Black Tiger's Eye | Formula | /Images/picture.jpg | Locality | acquired around 2016 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item. | 4039 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sodalite var. Hackmanite | Formula | /Images/picture.jpg | Town of Bancroft, Hastings County, Ontario, Canada | acquired around 2016 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item collected by Gordon Spalenka. Yellow/orange fluorescence. | 4040 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Nephrite | Formula | /Images/picture.jpg | New Zealand | acquired around 2016 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item. | 4041 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Dumortierite | Formula | /Images/picture.jpg | Grape Creek area, Fremont County, Colorado | acquired around 2016 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item. | 4042 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Andradite | Formula | /Images/picture.jpg | Alpine Mine (Porvenir Mine), Potosi Mining District, Osgood Mountains, Humboldt County, Nevada | acquired around 2016 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction item. | 4043 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Grunerite | Formula | /Images/picture.jpg | Spurr Mine, Imperial Heights, Baraga County, Michigan | acquired around 2016 | Magnetite | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4044 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Turneaureite | Formula | /Images/picture.jpg | Parker shaft, Franklin Mine, Franklin, Sussex County, New Jersey | Collected ca. 1930, acquired 2023 | Franklinite | Willemite | This is a Type Locality specimen for Turneaureite. From the collection of John Betts (#83176). From the collection of Mary and Gardner Miller of Missoula, Montana (#T3124). From the collection of the Franklin Mineral Museum. | 4045 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Zincite | Formula | /Images/picture.jpg | Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey | Collected July 3, 2016, acquired 2023 | Calcite | Franklinite, Willemite | This is a Type Locality specimen for Franklinite and Zincite. From the collection of John Betts (#83176). From the collection of Mary and Gardner Miller of Missoula, Montana (#T3124). | 4046 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gold | Formula | ,
,
|
Goldbottom Tours Claim, Dawson mining district, Yukon, Canada | September 1, 2015 at 1:05 pm | Matrix | Secondary Mineral(s) | Collected by Monica Tomaszewski. | 4047 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz Vug | Formula | /Images/picture.jpg | Tunnel Park, Ottawa Co., Michigan | 2002 | Chert | Secondary Mineral(s) | Found in the water near shore. | 4048 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Calcite | Formula | /Images/picture.jpg | Locality | Acquired 2002 | Limestone | Secondary Mineral(s) | Comments | 4049 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Datolite var. Porcelain | Formula | /Images/picture.jpg | Mines of Keweenaw County, Michigan | Acquired 2002 | Matrix | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4050 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Datolite var. Porcelain | Formula | /Images/picture.jpg | Mines of Keweenaw County, Michigan | Acquired 2002 | Matrix | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4051 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Datolite var. Porcelain | Formula | /Images/picture.jpg | Mines of Keweenaw County, Michigan | Acquired 2002 | Matrix | Secondary Mineral(s) | From the collection of Kevin Ponzio. | 4052 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Ampliacion a Victoria Mine, Navajun, La Rioja, Spain | Acquired 2002 | Marly Limestone | Secondary Mineral(s) | From the collection of Walt Kellogg. | 4053 | Hardness | Streak | Specific Gravity | Twinned cubic | |
| Elbaite | Formula | /Images/picture.jpg | Himalaya Mine (Himalaya dikes; Himalaya pegmatite), Gem Hill, Mesa Grande Mining District, San Diego County, California | Acquired 2002 | Quartz | Secondary Mineral(s) | From a bag of unprocessed 'pocket mud' obtained from Ed Quo. | 4054 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Favosites | Formula | /Images/picture.jpg | Stoneco White Rock Quarry, Clay Center, Allen Township, Ottawa County, Ohio | acquired around 2020 | Matrix | Secondary Mineral(s) | This Favosites appears to be Celestine after Limestone. | 4055 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Calcite | Formula | /Images/picture.jpg | Stoneco White Rock Quarry, Clay Center, Allen Township, Ottawa County, Ohio | acquired around 2020 | Limestone | Celestine | Comments | 4056 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Calcite | Formula | /Images/picture.jpg | Stoneco White Rock Quarry, Clay Center, Allen Township, Ottawa County, Ohio | acquired around 2020 | Limestone | Celestine | Comments | 4057 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyroxine var. Augite | Formula | /Images/picture.jpg | Locality | acquired around 2020 | Matrix | Secondary Mineral(s) | This specimen came from an identification kit (possibly one of mine). | 4058 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Amphibolite | Formula | /Images/picture.jpg | Locality | acquired around 2020 | Matrix | Secondary Mineral(s) | This specimen came from an identification kit (possibly one of mine). | 4059 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Graphite | Formula |  |
Bogala Mine, Bogala, Kegalle District, Sabaragamuwa Province, Sri Lanka | acquired 2020 | Matrix | Secondary Mineral(s) | From the collection of Larry Rush. | 4060 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz | Formula | /Images/picture.jpg | Locality | acquired around 2020 | Matrix | Secondary Mineral(s) | Comments | 4061 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Celestine | Formula | /Images/picture.jpg | Stoneco White Rock Quarry, Clay Center, Allen Township, Ottawa County, Ohio | acquired around 2020 | Limestone | Secondary Mineral(s) | IMRMC Silent Auction item. | 4062 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Kona Dolomite | Formula | /Images/picture.jpg | Locality | acquired around 2012 | Matrix | Secondary Mineral(s) | Comments | 4063 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), near Parham, Olden Township, Frontenac County, Ontario, Canada | acquired around 2003 | Calcite, Hydrozincite | Chalcopyrite | IMRMC Club Sales Table item. | 4064 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), near Parham, Olden Township, Frontenac County, Ontario, Canada | acquired around 2003 | Calcite, Hydrozincite | Chalcopyrite | IMRMC Club Sales Table item. | 4065 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Calcite | Formula | /Images/picture.jpg | Holbrook Mine (Holbrook shaft), Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Cochise County, Arizona | Acquired 2011 | Copper staining in core of luster. | Secondary Mineral(s) | Collected by Jim Ricker. | 4066 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Vanadinite | Formula | /Images/picture.jpg | Ford Mine (Ford property; Old Glory 1-5 claims; Mammoth Tiger Extension Mining Corp. property; Old Tiger), Tucson Wash, Mammoth, Mammoth Mining District, Pinal County, Arizona | Acquired 2011 | Matrix | Wulfenite | Collected by Jim Ricker. | 4067 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Aurichalcite | Formula | /Images/picture.jpg | Silver Bill Mine, Costello Mine group, Gleeson, Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona | Acquired 2011 | Matrix | Secondary Mineral(s) | Collected by Jim Ricker. | 4068 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Psilomelane | Formula | /Images/picture.jpg | Glove Mine (Sunrise Mine), Glove Mine group (Zombie & Zeco claims; Festiago-Franklin; Blacksmith adit), Cottonwood Canyon, Tyndall Mining District, Santa Cruz County, Arizona | Acquired 2011 | Limonite | Secondary Mineral(s) | Collected by Jim Ricker. | 4069 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Copper-bearing Fraipontite | Formula | /Images/picture.jpg | Silver Bill Mine, Costello Mine group, Gleeson, Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona | Acquired 2011 | Hematite | Azurite | Collected by Jim Ricker. | 4070 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Cerussite | Formula | /Images/picture.jpg | Glove Mine (Sunrise Mine), Glove Mine group (Zombie & Zeco claims; Festiago-Franklin; Blacksmith adit), Cottonwood Canyon, Tyndall Mining District, Santa Cruz County, Arizona | Acquired 2011 | Matrix | Secondary Mineral(s) | Collected by Jim Ricker. | 4071 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Diabolite | Formula | /Images/picture.jpg | Rowley Mine, Theba, Painted Rock Mining District, Painted Rock Mountains, Maricopa County, Arizona | Acquired 2011 | Andesite, Baryte | Caledonite, Leadhillite, Paratacamite | Collected by Jim Ricker. | 4072 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz Druse | Formula | /Images/picture.jpg | Garnet Range Area, Missoula Co., Montana | Acquired 2011 | Hematite/Limonite Breccia | Chalcedony | Collected by Jim Ricker. | 4073 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Septarium | Formula | /Images/picture.jpg | South Haven area, Michigan | Acquired 2002 | Matrix | Secondary Mineral(s) | Comments | 4074 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Olivine var. Peridot | Formula | /Images/picture.jpg | San Carlos Apache Indian Reservation, Arizona | Acquired 2002 | Basalt | Secondary Mineral(s) | From the collection of Larry Rush. | 4075 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg Geode | Formula | /Images/picture.jpg | Oregon | Acquired 2002 | Matrix | Secondary Mineral(s) | Other half of #4077. | 4076 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg Geode | Formula | /Images/picture.jpg | Oregon | Acquired 2002 | Matrix | Secondary Mineral(s) | Other half of #4076. | 4077 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Copper | Formula | /Images/picture.jpg | Keweenae Peninsula, Michigan | Acquired 2002 | Matrix | Secondary Mineral(s) | Comments | 4078 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz | Formula | /Images/picture.jpg | Locality | Acquired 2002 | Matrix | Secondary Mineral(s) | Comments | 4079 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Amethyst | Formula | /Images/picture.jpg | Brazil | acquired 2010 | Matrix | Secondary Mineral(s) | From the collection of Chuck Baran. | 4080 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Jasper Agate (Goldfield Bullseye Jassper) | Formula | /Images/picture.jpg | Goldfield, Goldfield Mining District, Esmeralda County, Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label lists locality as Goldfield Minerals Page 156 GemTrails Nevada. | 4081 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Jasper Agate (Goldfield Bullseye Jassper) | Formula | /Images/picture.jpg | Goldfield, Goldfield Mining District, Esmeralda County, Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label lists locality as Goldfield Minerals Page 156 GemTrails Nevada. | 4082 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Jasper Agate (Goldfield Bullseye Jassper) | Formula | /Images/picture.jpg | Goldfield, Goldfield Mining District, Esmeralda County, Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label lists locality as Goldfield Minerals Page 156 GemTrails Nevada. | 4083 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Trona Onyx | Formula | /Images/picture.jpg | Southern California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label lists locality as Page 144 Site A GemTrails Southern California. | 4084 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fairburn Agate | Formula | /Images/picture.jpg | Fairburn, Custer Co., South Dakota | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4085 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fairburn Agate | Formula | /Images/picture.jpg | Fairburn, Custer Co., South Dakota | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4086 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Outside the West Boundary of Petrified Forest, Petrified Forest National Park, Apache County, Arizona | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4087 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Spruce Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4088 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Apache Tear | Formula | /Images/picture.jpg | South of Scottys Junction, Nye Co., Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 165 of GemTrails Nevada. | 4089 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Apache Tear | Formula | /Images/picture.jpg | South of Scottys Junction, Nye Co., Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 165 of GemTrails Nevada. | 4090 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Apache Tear | Formula | /Images/picture.jpg | South of Scottys Junction, Nye Co., Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 165 of GemTrails Nevada. | 4091 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Apache Tear | Formula | /Images/picture.jpg | South of Scottys Junction, Nye Co., Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 165 of GemTrails Nevada. | 4092 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Apache Tear | Formula | /Images/picture.jpg | South of Scottys Junction, Nye Co., Nevada | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 165 of GemTrails Nevada. | 4093 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Cave-in-Rock, Cave-In-Rock Mining Sub-District, Hardin County, Illinois | acquired around 2003 | Fluorite | Secondary Mineral(s) | Comments | 4094 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Spruce Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington | acquired around 2003 | Quartz | Secondary Mineral(s) | Comments | 4095 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Rose Quartz | Formula | /Images/picture.jpg | Antelope Lake, Plumas County, California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4096 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Rose Quartz | Formula | /Images/picture.jpg | Antelope Lake, Plumas County, California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4097 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Rose Quartz | Formula | /Images/picture.jpg | Antelope Lake, Plumas County, California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4098 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Rose Quartz | Formula | /Images/picture.jpg | Antelope Lake, Plumas County, California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4099 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg | Formula |  |
Richardson's Recreational Ranch, Madras, Jefferson County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 86 of GemTrails Oregon 2008 Edition. | 4100 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg | Formula | |
Richardson's Recreational Ranch, Madras, Jefferson County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 86 of GemTrails Oregon 2008 Edition. | 4101 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg | Formula | |
Richardson's Recreational Ranch, Madras, Jefferson County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 86 of GemTrails Oregon 2008 Edition. | 4102 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg | Formula | |
Richardson's Recreational Ranch, Madras, Jefferson County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 86 of GemTrails Oregon 2008 Edition. | 4103 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Mahogany | Formula | /Images/picture.jpg | Glass Buttes, Lake County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 152 of GemTrails Oregon. | 4104 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian var. Mahogany | Formula | /Images/picture.jpg | Glass Buttes, Lake County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 152 of GemTrails Oregon. | 4105 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Obsidian | Formula | /Images/picture.jpg | Glass Buttes, Lake County, Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. Chuck's label references page 152 of GemTrails Oregon. | 4106 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Oregon Beach Agate | Formula | /Images/picture.jpg | Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4107 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Oregon Beach Agate | Formula | /Images/picture.jpg | Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4108 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Oregon Beach Agate | Formula | /Images/picture.jpg | Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4109 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Oregon Beach Agate | Formula | /Images/picture.jpg | Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4110 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Oregon Beach Agate | Formula | /Images/picture.jpg | Oregon | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4111 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Gray Quarry, Hamilton, Hancock County, Illinois | acquired around 2009 | Matrix | Dolomite | IMRMC Silent Auction specimen. See #4143 for other half. | 4112 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz Geode (half) | Formula | /Images/picture.jpg | Beanblossom Creek, Beanblossom, Brown Co., Indiana | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4113 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Calcite Fossils | Formula | /Images/picture.jpg | Rensselaer Quarry (Rensselaer Stone Company Quarry; Pleasant Ridge Quarry), Pleasant Ridge, Jasper County, Indiana | acquired around 2009 | Dolostone | bitumen | IMRMC Silent Auction specimen. From the collection of Ed Krzeminski. | 4114 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gypsum var. Satin Spar | Formula | /Images/picture.jpg | Locality | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. From the collection of Brittany Pouch. | 4115 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ni-Magnesite, Gaspeite var. lemon magnesite | Formula | /Images/picture.jpg | Western Australia, Australia | acquired around 2009 | Brown siltstone | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4116 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ni-Magnesite, Gaspeite var. lemon magnesite | Formula | /Images/picture.jpg | Western Australia, Australia | acquired around 2009 | Brown siltstone | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4117 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fluorite | Formula | /Images/picture.jpg | Bancroft area, Ontario, Canada | acquired around 2009 | Matrix | Calcite | IMRMC Silent Auction specimen. Label notes deep blue under long wave. | 4118 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Tremolite var. Hexagonite | Formula | /Images/picture.jpg | No. 2½ Mine (U.S. Talc 2 1/2 mine; Wintergreen mine), Talcville, St. Lawrence Co., New York | Collected July 2015 | Matrix | Secondary Mineral(s) | Collected by Bob Sinke. | 4119 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode (sawn half) | Formula | /Images/picture.jpg | Mexico | When Collected | Matrix | Secondary Mineral(s) | Comments | 4120 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode (sawn half) | Formula | /Images/picture.jpg | Mexico | When Collected | Matrix | Secondary Mineral(s) | Comments | 4121 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg Geode | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | See #4123 for other half. | 4122 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg Geode | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | See #4122 for other half. | 4123 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | See #4125 for other half. | 4124 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Thunder Egg | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | See #4124 for other half. | 4125 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz | Formula | /Images/picture.jpg | Antelope Lake, Plumas County, California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4126 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz | Formula | /Images/picture.jpg | Antelope Lake, Plumas County, California | acquired 2010 | Matrix | Secondary Mineral(s) | Collected by Chuck Baran. | 4127 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz | Formula | /Images/picture.jpg | Ochoco National Forest, Prineville, Crook County, Oregon | acquired around 2009 | Agate | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4128 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Biotite | Formula | /Images/picture.jpg | Locality | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4129 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Alexandria, Township of Vernon, Clark County, Missouri | acquired around 2009 | Matrix | Calcite | IMRMC Silent Auction specimen. See #4131 for other half. | 4130 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Alexandria, Township of Vernon, Clark County, Missouri | acquired around 2009 | Matrix | Calcite | IMRMC Silent Auction specimen. See #4130 for other half. | 4131 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Quartz | Formula | /Images/picture.jpg | Lick Creek, Helmsburg, Brown County, Indiana | acquired around 2009 | Chert | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4132 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Alexandria, Township of Vernon, Clark County, Missouri | acquired around 2009 | Matrix | Calcite | IMRMC Silent Auction specimen. | 4133 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Alexandria, Township of Vernon, Clark County, Missouri | acquired around 2009 | Matrix | Calcite | IMRMC Silent Auction specimen. | 4134 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Woodruff, Petrified Forest Mining District, Navajo County, Arizona | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4135 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Cerussite | Formula | /Images/picture.jpg | Graphic Mine (Graphic shaft; Waldo-Graphic Mine; Waldo tunnel), Magdalena Mining District, Socorro County, New Mexico | acquired around 2009 | Hematite | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4136 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Allophane | Formula | /Images/picture.jpg | Graphic Mine (Graphic shaft; Waldo-Graphic Mine; Waldo tunnel), Magdalena Mining District, Socorro County, New Mexico | acquired around 2009 | Silicified Limestone | Aurichalcite | IMRMC Silent Auction specimen. | 4137 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Chalcedony | Formula | /Images/picture.jpg | Tonopah, Osborn Mining District, Maricopa County, Arizona | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4138 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Lightning Ridge, Winfield, Marion Co., Alabama | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4139 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gypsum | Formula | /Images/picture.jpg | Grandville, Ottawa Co., Michigan | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4140 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Wonderstone | Formula | /Images/picture.jpg | Fallon, Churchill County, Nevada | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. Wonderstone is a rhyolite that has Liesegang bands. | 4141 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Winfield, Marion County, Alabama | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4142 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Gray Quarry, Hamilton, Hancock County, Illinois | acquired around 2009 | Matrix | Dolomite | IMRMC Silent Auction specimen. See #4112 for other half. | 4143 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Oyster fossil | Formula | /Images/picture.jpg | Pierre, Stanley Co., South Dakota | acquired about 1968 | Matrix | Secondary Mineral(s) | Comments | 4144 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Favosites conicus fossil | Formula | /Images/picture.jpg | Locality | acquired about 2008 | Matrix | Secondary Mineral(s) | Devonian period. | 4145 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Favosites conicus fossil | Formula | /Images/picture.jpg | Locality | acquired about 2008 | Matrix | Secondary Mineral(s) | Devonian period. | 4146 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gryphaea (snail shell) | Formula | /Images/picture.jpg | Locality | acquired about 2008 | Matrix | Secondary Mineral(s) | Comments | 4147 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gryphaea (snail fossil) | Formula | /Images/picture.jpg | Locality | acquired about 2008 | Matrix | Secondary Mineral(s) | Jurassic period. | 4148 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Aucella piochii (clam fossil) | Formula | /Images/picture.jpg | Locality | acquired about 2008 | Matrix | Secondary Mineral(s) | Jurassic period. | 4149 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Locality | acquired before 2000 | Matrix | Secondary Mineral(s) | Comments | 4150 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Locality | acquired before 2000 | Matrix | Secondary Mineral(s) | Comments | 4151 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Locality | acquired before 2000 | Matrix | Secondary Mineral(s) | Comments | 4152 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Locality | acquired before 2000 | Matrix | Secondary Mineral(s) | One face polished. | 4153 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Petrified Wood | Formula | /Images/picture.jpg | Arizona | Collected about 1954 | Matrix | Secondary Mineral(s) | Collected by Ray Tomaszewski. | 4154 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sphalerite | Formula | /Images/picture.jpg | North Green Mine, Ozark-Mahoning group, Cave-In-Rock Mining Sub-District, Hardin County, Illinois | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4155 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Gray Quarry, Hamilton, Hancock County, Illinois | acquired around 2009 | Matrix | Dolomite | IMRMC Silent Auction specimen. See #4157 for other half. | 4156 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Gray Quarry, Hamilton, Hancock County, Illinois | acquired around 2009 | Matrix | Dolomite | IMRMC Silent Auction specimen. See #4156 for other half. | 4157 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Between Guthrie and Coveyville, Township of Marshall, Lawrence County, Indiana | acquired around 2009 | Matrix | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4158 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Geode | Formula | /Images/picture.jpg | Junction of Lick Creek and Turner Roads, Lick Creek, Helmsburg, Brown County, Indiana | acquired around 2009 | Chert | Secondary Mineral(s) | IMRMC Silent Auction specimen. | 4159 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Acanthite | Formula | /Images/picture.jpg | Fresnillo Municipality/District, Zacatecas, Mexico | acquired 2023 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82492). From the collection of Mary and Gardner Miller of Missoula, Montana (#T1270). | 4160 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ecdemite var. Heliophyllite | Formula | /Images/picture.jpg | Pacchi Limanhi, Lavrion (Laurium) Mining District, Lavreotiki, East Attica, Attica, Greece | Collected 1950s, acquired 2023 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82255). From the collection of Mary and Gardner Miller of Missoula, Montana (#T980). | 4161 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Bismuth (man made) | Formula | /Images/picture.jpg | Locality | acquired 2023 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82599). From the collection of Mary and Gardner Miller of Missoula, Montana (#T2100). | 4162 | Hardness | Streak | Specific Gravity | Hoppered | |
| Apophyllite | Formula | /Images/picture.jpg | Millington Quarry, Bernards Township, Somerset County, New Jersey | Collected January 1996, acquired 2023 | Prehnite | Secondary Mineral(s) | From the collection of John Betts (#82585). From the collection of Mary and Gardner Miller of Missoula, Montana (#T3732), purchased in 2019. From the collection of John Betts (#77887). | 4163 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Anatase | Formula | /Images/picture.jpg | Geiteryggen (Dryfonni), Hardangervidda Vest, Ullensvang kommune, Vestland, Norway per label Geiteryggen, Hardangervidda West, Ullensvang, Vestland, Norway per MinDat |
Gifted 2023 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82339). | 4164 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ironized Petrified Wood | Formula | /Images/picture.jpg | Locality | acquired 1960s | Matrix | Secondary Mineral(s) | Comments | 4165 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| fossil beach pebble | Formula | /Images/picture.jpg | Lake Superior shoreline, Lakeshore Cabin, Porcupine Mountains State Park, Porcupine Mountains, Ontonagon Co., Michigan | Collected July 1999 | Sandstone | Secondary Mineral(s) | probably Oronto Group; Freda Sandstone | 4166 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Devonochonetes fossil | Formula | /Images/picture.jpg | Belknap Hill (also called Lookout Hill), Grand Rapids, Michigan | Collected 1960s | Matrix | Secondary Mineral(s) | Probably glacial transport from the Alpena area. | 4167 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lamprophyric-pyroxene-calcite-biotite olivine-melilitite var. Alnoite | Formula | /Images/picture.jpg | Alnoite vein, Hutson Zinc mine, Salem, Illinois - Kentucky Fluorspar District, Livingston Co., Kentucky | acquired 2002 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. | 4168 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lamprophyric-pyroxene-calcite-biotite olivine-melilitite var. Alnoite | Formula | /Images/picture.jpg | North Cut, Old Jim Mine, Marion, Crittenden Co., Kentucky | acquired 2002 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. | 4169 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lamprophyric-pyroxene-calcite-biotite olivine-melilitite var. Alnoite | Formula | /Images/picture.jpg | North Cut, Old Jim Mine, Marion, Crittenden Co., Kentucky | acquired 2002 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. | 4170 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lamprophyric-pyroxene-calcite-biotite olivine-melilitite var. Alnoite | Formula | /Images/picture.jpg | North Cut, Old Jim Mine, Marion, Crittenden Co., Kentucky | acquired 2002 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. | 4171 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lamprophyric-pyroxene-calcite-biotite olivine-melilitite var. Alnoite | Formula | /Images/picture.jpg | North Cut, Old Jim Mine, Marion, Crittenden Co., Kentucky | acquired 2002 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. | 4172 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Wardite | Formula | /Images/picture.jpg | Rapid Creek, 70 km northwest of Aklavik, Dawson mining district, Yukon, Canada | Collected before 2013 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82779). From the collection of Mary and Gardner Miller of Missoula, Montana (#T1986), purchased in 2013. From the collection of E. Greene. | 4173 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Alabandite | Formula | /Images/picture.jpg | Merelani Hills, western slope of Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania | Collected before 2014 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82534). From the collection of Mary and Gardner Miller of Missoula, Montana (#T2224), purchased in 2014. From the collection of E. Greene. Betts label incorrectly places the Merelani Hills in the adjacent Arusha region. | 4174 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Halysites (chain coral fossil) | Formula | /Images/picture.jpg | Cascade Gravel Pit, Grand Rapids, Kent Co., MI | Collected about 1965 | Matrix | Secondary Mineral(s) | The Cascade Gravel Pit operated from the 1920's to about 1970. | 4175 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lophophyllum profundum | Formula | /Images/picture.jpg | Locality | >acquired ~2000 | Matrix | Secondary Mineral(s) | Lophophyllum profundum ; Kingdom, Animalia ; Phylum, Cnidaria ; Class, Anthozoa ; Order, Stauriida ; Family, Lophophyllidae. Pennsylvanian period | 4176 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lophophyllum profundum | Formula | /Images/picture.jpg | Locality | >acquired ~2000 | Matrix | Secondary Mineral(s) | Lophophyllum profundum ; Kingdom, Animalia ; Phylum, Cnidaria ; Class, Anthozoa ; Order, Stauriida ; Family, Lophophyllidae. Pennsylvanian period | 4177 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lophophyllum profundum | Formula | /Images/picture.jpg | Locality | >acquired ~2000 | Matrix | Secondary Mineral(s) | Lophophyllum profundum ; Kingdom, Animalia ; Phylum, Cnidaria ; Class, Anthozoa ; Order, Stauriida ; Family, Lophophyllidae. Pennsylvanian period | 4178 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Streptelasma rusticum | Formula | /Images/picture.jpg | Locality | acquired ~2000 | Matrix | Secondary Mineral(s) | Ordovician period | 4179 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite Neospirifer dunbari | Formula | /Images/picture.jpg | Locality | acquired ~2000 | Matrix | Secondary Mineral(s) | Pennsylvanian period | 4180 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite Neospirifer dunbari | Formula | /Images/picture.jpg | Locality | acquired ~2000 | Matrix | Secondary Mineral(s) | Pennsylvanian period | 4181 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fluorite | Formula | /Images/picture.jpg | Cornwall, England, UK | acquired 2007 | Siderite | Secondary Mineral(s) | Name of seller lost; specimen was numbered 17AB. | 4182 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Cordierite | Formula | /Images/picture.jpg | Millard Chandler (North Star) Mine, Chatham, Carroll Co., New Hampshire | collected July 17, 2007 | Matrix | Secondary Mineral(s) | Comments | 4183 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Szenicsite | Formula | /Images/picture.jpg | Jardinera No. 1 Mine, Diego de Almagro, Chanaral Province, Atacama, Chile | acquired 2007 | molybdenite and Cu-bearing powellite/td> | Secondary Mineral(s) | From the collection of San Andreas Minerals (#005665). This is a Type Locality specimen. | 4184 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Babingtonite | Formula | /Images/picture.jpg | Mumbai District, Maharashtra, India per label Mumbai Suburban District, Konkan Division, Maharashtra, India per MinDat |
Collected before 1986, acquired 2023 | Calcite, Quartz | Okenite | Babingtonite present makes this probably from Malad Quarry, Malad, Mumbai Suburban District. From the collection of John Betts (#80186). From the collection of Jack Troy (#o75); acquired in 1986. | 4185 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrite | Formula | /Images/picture.jpg | Milpillas Mine, Cuitaca, Sonora, Mexico per label Milpillas Mine, Milpillas, Santa Cruz Municipality, Sonora, Mexico per MinDat |
Collected 2015, acquired 2023 | white dickite clay matrix | Chalcocite (coating on Pyrite) | From the collection of John Betts (#75670). Analysis of coating performed by Ben Grguric at South Australian Museum. | 4186 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sphalerite | Formula | /Images/picture.jpg | Tri-State Lead-Zinc Mining District, near Joplin (Joplin Field), Jasper County, Missouri | Collected before 2004, acquired 2023 | Dolomite | Calcite | From the collection of John Betts (#81342). From the collection of Willard Elsing. | 4187 | Hardness | Streak | Specific Gravity | lamellar twinned crystals | |
| Fluorite | Formula | /Images/picture.jpg | Trollers Gill, Main Incline, Skyreholme Beck, Yorkshire, England per later Betts label Trollers Gill Main Incline, Appletreewick, Yorks per original Betts label Trollers Gill (Skyreholme Beck Valley), Skyreholme, High and Low Bishopside, Harrogate, North Yorkshire, England, UK per MinDat |
Collected May 2008, acquired 2023 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#80576). From the collection of Mary and Gardner Miller of Missoula, Montana (#M2493), acquired ca. 2013. From the collection of John Betts (#59315); collected May 2008. | 4188 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Stibnite | Formula | /Images/picture.jpg | Herja Mine (Kisbanya), Baia Mare, Maramureș County, Carpathian Mountains, Romania | Collected ca. 1994, acquired 2023 | Calcite | Secondary Mineral(s) | From the collection of John Betts (#81678). | 4189 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Goosecreekite | Formula | /Images/picture.jpg | Nashik (Nasik) District, Nashik Division, Maharashtra, India | Collected before 2014, acquired 2023 | Matrix | Quartz druze | From the collection of John Betts (#82748). From the collection of Mary and Gardner Miller of Missoula, Montana (#T1518), acquired in 2015. From the collection of Chris Wright (Wright's Rock Shop). | 4190 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Beryl var. Aquamarine | Formula | /Images/picture.jpg | Shigar Valley, Skardu District, Gilgit-Baltistan, Pakistan per label Shigar Valley, Shigar District, Gilgit-Baltistan, Pakistan per MinDat |
Collected before ca. 1992, acquired 2023 | Matrix | Secondary Mineral(s) | From the collection of John Betts (#82767). From the collection of Mary and Gardner Miller of Missoula, Montana (#T1456), acquired ca. 1992. 1.1 grams. The Shigar Valley is not in the Skardu District (which only has Calcite and Quartz per the literature). | 4191 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Latiumite | Formula | /Images/picture.jpg | Cava di Campagnano, Campagnano di Roma, Metropolitan City of Rome Capital, Lazio, Italy per MinDat Cava di Campagnano, Campagnano di Roma, Sacrofano Caldera, Rome Prov., Latium, Italy per M&W Minerals label Campagnano, Lazio, Italy per Whole Earth Minerals label |
acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Walt Kellogg (M&W Minerals, #m6152). From the collection of Steve Pullman (Whole Earth Minerals). | 4192 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Brandtite | Formula | /Images/picture.jpg | Harstigen Mine, Pajsberg, Persberg ore district, Bergslagen mining district, Filipstad, Varmland County, Sweden | acquired 2024 | Matrix | Bementite, Caryopilite | A Type Locality specimen for Brandtite and Caryopilite. From the collection of Walt Kellogg (#m99999). From the collection of Wolfgang Henkel. | 4193 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sassolite | Formula | /Images/picture.jpg | Sasso Pisano, Castelnuovo di Val di Cecina, Pisa Province, Tuscany, Italy | acquired 2024 | Matrix | Secondary Mineral(s) | A Type Locality specimen. From the collection of Walt Kellogg (#m6806). From the collection of Wolfgang Henkel (#4.344). | 4194 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Traskite | Formula | /Images/picture.jpg | Esquire No. 7 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California | acquired 2024 | Matrix | Sanbornite, Gillespite, Anadite, Pyrite, Quartz | From the collection of Walt Kellogg (#m4118). From the collection of Steve Pullman. | 4195 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Jahnsite-(MnMnMn) var. Salmonsite | Formula | /Images/picture.jpg | Stewart Mine, Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California | Sicklerite before 1938, acquired 2024 | Lithiophilite var. Sicklerite | Hureaulite | Salmonsite is a discredited mineral; a mix of hureaulite and jahnsite-(MnMnMn). A Type Locality specimen for Salmonsite and Sicklerite. From the collection of Walt Kellogg (#m6847). From the collection of Steven Pullman (#402.8). From the collection of the Calif. Academy of Science. From the collection of John Melhase. | 4196 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fluorite | Formula | /Images/picture.jpg | Blanchard Mine, Bingham, Hansonburg District, Socorro County, New Mexico | acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Joan Stoker. Collected by Don Van Dyke. | 4197 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Coutinhoite | Formula | /Images/picture.jpg | Urucum Mine, Galileia, Minas Gerais, Brazil per Tony's label Urucum claim, Barra do Cuiete, Conselheiro Pena, Minas Gerais, Brazil per MinDat |
acquired 2024 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen. From the collection of Tony Nickischer (Excalibur Minerals). | 4198 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Blatonite | Formula | /Images/picture.jpg | Uranus Mine, Kleinrückerswalde, Annaberg mining district, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany | acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Tony Nickischer (Excalibur Minerals). | 4199 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Nekoite | Formula | /Images/picture.jpg | Wet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California | acquired 2024 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen. From the collection of Tony Nickischer (Excalibur Minerals). | 4200 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Baiamareite | Formula |  ,
 |
Sasar Mine, Carpathian Mountains, Sasar-Valea Rosie mining area, Baia Mare, Maramurs County, Romania, Europe | acquired 2024 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen. IMA # 2023-044. From the collection of Tony Nickischer (Excalibur Minerals). | 4201 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Fossil Turtle | Formula | /Images/picture.jpg | Badlands, Pennington County, South Dakota | >acquired ~1965 | Matrix | Secondary Mineral(s) | Comments | 4202 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ordivician Fossils | Formula | /Images/picture.jpg | US27 road cut at 19 mile marker, just outside Richmond, IN, eastern side, about 75 feet short of the mile marker (coming from Cincinnati). | Collected 2001 | Matrix | Secondary Mineral(s) | Comments | 4203 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ordivician Fossils | Formula | /Images/picture.jpg | US27 road cut at 19 mile marker, just outside Richmond, IN, eastern side, about 75 feet short of the mile marker (coming from Cincinnati). | Collected 2001 | Matrix | Secondary Mineral(s) | Comments | 4204 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Plant Leaves Lepidophylloides | Formula | /Images/picture.jpg | Corydon Stone Co. Quarry (Corydon Crushed Stone and Lime Quarry), Corydon, Harrison County, Indiana | acquired ~2000 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. Mooretown Formation, Lower Chester, Upper Missisippian period | 4205 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Brachiopod Pseudatrypa | Formula | /Images/picture.jpg | Atkins Quarry, Jeffersonville, Clark Co., Indiana | >acquired ~2000 | Matrix | Secondary Mineral(s) | Collected by Alan Goldstein. North Vernon Formation, Givetian, Middle Devonian period | 4206 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lophophyllum profundum | Formula | /Images/picture.jpg | Locality | >acquired ~2000 | Matrix | Secondary Mineral(s) | Lophophyllum profundum ; Kingdom, Animalia ; Phylum, Cnidaria ; Class, Anthozoa ; Order, Stauriida ; Family, Lophophyllidae. Pennsylvanian period | 4207 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gypsum Sand | Formula | /Images/picture.jpg | White Sands, New Mexico | acquired 2020 | Matrix | Secondary Mineral(s) | Collected by Mary Jane Dockeray. | 4208 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sand | Formula | /Images/picture.jpg | Clearwater, Florida | acquired 2020 | Matrix | Secondary Mineral(s) | From the collection of Mary Jane Dockeray. Collected by Bob Beauvais. | 4209 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sand | Formula | /Images/picture.jpg | Clearwater, Florida | acquired 2020 | Matrix | Secondary Mineral(s) | From the collection of Mary Jane Dockeray. Collected by Bob Beauvais. | 4210 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Foraminifera Sand | Formula | /Images/picture.jpg | Foraminifera Beach, Connemara, Galway County, Connacht, Ireland | Collected Octover 2000, acquired 2020 | Matrix | Secondary Mineral(s) | Collected by Mary Jane Dockeray. | 4211 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Foraminifera Sand | Formula | /Images/picture.jpg | Dog's Bay Beach, near Roundstone, Connemara, Galway County, Connacht, Ireland | Collected Octover 2000, acquired 2020 | Matrix | Secondary Mineral(s) | Collected by Mary Jane Dockeray. | 4212 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Mosandrite-(Ce) var. Lovchorrite | Formula | /Images/picture.jpg | Lovchorrite Mine, Hackman Valley, Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia | Collected before 1938, acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Steve Garza (#SDg5A). From the collection of Cornelius S. Hurlbut. | 4213 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Washed Heavy Sand | Formula | /Images/picture.jpg | Western Antarctica, Antarctica | Collected 1956, acquired 2024 | Matrix | Garnets, Quartz, Magnetite, Scheelite, Epidote | From the collection of Steve Garza. Collected by Dr. Robert Nichols, LSU Geology Professor. | 4214 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Copper | Formula | /Images/picture.jpg | Keweenaw Peninsula, Michigan | acquired 2024 | Conglomerate/Breccia | Secondary Mineral(s) | IMRMC Raffle item. 3x3x1 slab. | 4215 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Zincite | Formula | /Images/picture.jpg | Franklin Mine, Franklin, Sussex County, New Jersey | Collected 2024, gifted 2024 | Franklinite | Willemite, Calcite | Collected by Joan Stoker. A Type Locality specimen for Zincite and Franklinite. | 4216 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Salmon Calcite | Formula | /Images/picture.jpg | Franklin Mine, Franklin, Sussex County, New Jersey | Collected 2024, gifted 2024 | Matrix | Secondary Mineral(s) | Collected by Joan Stoker. | 4217 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Rutherfordine | Formula | /Images/picture.jpg | Musonoi Mine, Kolwezi, Mutshatsha, Lualaba, DR Congo | aquired 2024 | Sandstone | Soddyite, Schoepite, Cuprosklodowskite | From the collection of Tony Nickischer (Excalibur Minerals). From the Nickischer Collection, Musonoi reference collection (#8). An old specimen, ex-Eric Quinter material, comprised of numerous, very tiny yellow needles of rutherfordine, sparsely coated with smaller schoepite sprays, perched on well-scattered, blocky, orthorhombic, yellow soddyite, and with a small patch of bright green cuprosklodowskite sprays as well! A wonderful, and quite hot, uranium-rich sample from my old Musonoi reference collection, size about 5cm x 3cm |
4218 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Okhotskite | Formula | /Images/picture.jpg | Kokuriki mine, Kitami City, Okhotsk Subprefecture, Hokkaido Prefecture, Japan | aquired 2024 | Hematite | Secondary Mineral(s) | A Type Locality specimen for Okhotskite. From the collection of Tony Nickischer (Excalibur Minerals). From the collection of Forrest & Barbara Cureton (Excalibur-Cureton Company). | 4219 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Keystoneite | Formula | /Images/picture.jpg | McAlpine Mine, Peñon Blanco Peak, Coulterville Mining District, Tuolumne County, California | aquired 2024 | Quartz | Hessite, Choloalite, Electrum | From the collection of Tony Nickischer (Excalibur Minerals). From the collection of Forrest & Barbara Cureton. | 4220 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Goldhillite | Formula | /Images/picture.jpg | Gold Hill Mine, Gold Hill, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah | aquired 2024 | Silicate Matrix | Zalesiite, Chrysocolla, Chalcocite | A Type Locality specimen for Goldhillite. From the collection of Tony Nickischer (Excalibur Minerals). | 4221 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Sabugalite | Formula | /Images/picture.jpg | Sabugal, Guarda, Portugal | gifted 2024 | Limonite | Secondary Mineral(s) likely | A Type Locality specimen. From the collection of Walt Kellogg (#m99999). From the collection of Wolfgang Henkel. | 4222 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Kupletskite | Formula | /Images/picture.jpg | Gjerdingselva, Lunner, Viken, Norway per MinDat Gjerdingselva, Nordmarka, Lunner, Oppland, Norway per M&W Minerals label Gjerdingselva, Nordmarka, N. of Oslo, Norway per Garske label |
acquired 2024 | Matrix | Elpidite, Aegirine | From the collection of Walt Kellogg (M&W Minerals, #m3910). From the collection of Steve Pullman (Whole Earth Minerals). From the collection of Dr. David M Garske. | 4223 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Wollastonite | Formula | /Images/picture.jpg | Lewis Mine (Cabot Corporation Mine; Lewis NYCO Mine), Lewis, Essex County, New York | gifted 2024 | Matrix | Diopside, Garnet (Andradite-Grossular) | Collected by Joan Stoker. | 4224 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Diamond | Formula | /Images/picture.jpg | Tshikapa, Kasaï, DR Congo | Collected between 1971 to May 1997, acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Tony Nickischer (Excalibur Minerals).From a old hoard of interesting diamond rough when DRC was still Zaire, we offer a small lot of seven (7) different diamond crystals packaged in a 2cm screw-top vial. Each lot will contain a range of hues, typically white to greenish, the vast majority showing usual cube habits. Crystals will range from about 1.5mm to 2mm across, total lot weight usually just under 0.5 carats. Neat samples for micromounting or jewelry work, limit 3 lots per order, please! Domestic shipments only. |
4225 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Ferrowyllieite | Formula | /Images/picture.jpg | Victory Mine, Custer, Custer Mining District, Custer County, South Dakota | acquired 2024 | Matrix | Secondary Mineral(s) | This is a Type Locality specimen for Ferrowyllieite. From the collection of Tony Nickischer (Excalibur Minerals).From the type locality, collected and sold to me by the author, the late Paul Moore! Ferrowyllieite occurs as dark blue to almost black crystalline masses and cleavages scattered through pegmatite matrix. Originally described by Moore as wylleite and later redefined by him, the material and locality is now under water in a reservoir, so no more material will ever be recovered from here! In rich matrix specimen sizes from 1.5cm to 5cm Collected by Paul Moore. |
4226 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Lazaraskeite | Formula | /Images/picture.jpg | Western end, Pusch Ridge, Pima County, Arizona | acquired 2024 | Matrix | Secondary Mineral(s) not identified | This is a Type Locality specimen for Lazaraskeite. From the collection of Tony Nickischer (Excalibur Minerals).This NEW SPECIES occurs as tiny, sky-blue micro crystals and aggregates sparsely scattered on matrix. Formula: Cu(C2H3Os)2, monoc;linic, IMA # 2018-137. The first naturally-occurring crystalline glycolate mineral, here from the type locality. Only one small specimen on hand, about 1cm across |
4227 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Apexite [white/clear] | Formula | /Images/picture.jpg | Apex Mine (Rundberg Mine; Early Day Mine), Reese River Mining District, Lander County, Nevada | acquired 2024 | Quartz | Cejkaite [yellow], Andersonite [green] | This is a Type Locality specimen for Apexite. From the collection of Tony Nickischer (Excalibur Minerals).An excellent, relatively NEW SPECIES, here as micro clear to white, bladed laths and sprays scattered on matrix, typically with white to pale yellowish micro cejkaite and occasionally with brilliantly fluorescent andersonite and possibly other species as well. Formula: NaMg(PO4)*9H2O - triclinic, IMA #2015-002. The species was found in a small occurrence as an efflorescent on massive quartz and is named for the locality. I am delighted to note that yours truly is a co-author of the mineral and was the first to chemically analyze it, suggesting that it was new to science. Specimens range in size from 2cm to nearly 8cm across |
4228 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Halite | Formula | /Images/picture.jpg | Khewra Salt Mine (Mayo Mine), Khewra, Jhelum District, Punjab Province, Pakistan | gifted 2020 | Matrix | Secondary Mineral(s) | Comments | 4229 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Gold | Formula | /Images/picture.jpg | Truckee Mining District, Churchill County, Nevada | Collected May 1999, acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Tony Nickischer (Excalibur Minerals).A small quartzite specimen about 2cm long, showing a nicely crystallized gold seam exposed and running across its entire face in a thin line. The specimen makes a superb and attractive micro under the 'scope. It was collected in May, 1999. One only! Collected by C. Pierson 5/99 (#709, C-51). |
4230 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Niocalite | Formula | /Images/picture.jpg | Oka, Deux-Montagnes RCM, Laurentides, Quebec, Canada | acquired 2024 | Calcite | Latrappite, Magnetite, Apatite | A Type Locality specimen for Niocalite and Latrappite. From the collection of Tony Nickischer (Excalibur Minerals).This unusual species, a calcian niobian silicate, occurs as mm-sized prismatic crystals scattered through matrix. Besides the brownish yellow niocalite, the matrix may also contain dark grey crystalline latrappite and possibly other phases from this classic locality. |
4231 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Bobcookite | Formula | /Images/picture.jpg | Blue Lizard Mine, Red Canyon Mining District, San Juan County, Utah | Collected before 2014, acquired 2024 | Matrix | Secondary Mineral(s) | A Type Locality specimen for Bobcookite. From the collection of Tony Nickischer (Excalibur Minerals).This rare species occurs as minute, pale glassy green crystalline masses nicely scattered over punky sulfate matrix, typically associated with boyleite/rozenite and occasionally with halotrichite or chalcanthite as well. Formula: NaAl(UO2)2(SO4)4*18H2O, triclinic, IMA # 2014-030. The mineral is nicely fluorescent (bright green SW/LW UV), Type locality material from one of the authors from Area #4 of this prolific deposit, the last of our stock. |
4232 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Huntite | Formula | /Images/picture.jpg | Austin, Reese River Mining District, Lander County, Nevada | acquired 2024 | Matrix | Secondary Mineral(s) | From the collection of Tony Nickischer (Excalibur Minerals).Pure white masses of huntite completely comprising matrix. Relatively uncommon, huntite masses from this locality are chalky, pure white without discernable matrix. |
4233 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Turquois | Formula | /Images/picture.jpg | Bishop Mine, Lynch Station, Campbell County, Virginia | probably Collected before 1970, acquired 2024 | quartz/schist | Secondary Mineral(s) | From the collection of Tony Nickischer (Excalibur Minerals).From the classic locality for crystallized turquoise, we have a small selection of excellent mounted specimens, all showing fine, blue, wedge-shaped micro crystals on quartz/schist matrix. The Bishop Mine was the first reported locality for crystals of turquoise, and this Campbell County site remains today as one of the finest occurrences of the mineral despite being worked out long ago. Limited availability! |
4234 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Mansfieldite | Formula | /Images/picture.jpg | Hobart Butte, Black Butte Mining District, Lane County, Oregon | acquired 2024 | altered white rhyolite | probable Scorodit | >A Type Locality specimen for Mansfieldite. From the collection of Tony Nickischer (Excalibur Minerals).Masses of altered white rhyolite are riddled with seams and cavities bearing small foamy crusts of grey-green mansfieldite in these specimens from the type locality, some with minor scorodite. Old stuff! |
4235 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Halite | Formula | /Images/picture.jpg | Khewra Salt Mine (Mayo Mine), Khewra, Jhelum District, Punjab Province, Pakistan | gifted 2020 | Matrix | Secondary Mineral(s) | Comments | 4236 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Hawaiian Olivine Green Sand | Formula | /Images/picture.jpg | Hawaii | acquired 2020 | Matrix | Secondary Mineral(s) | From the collection of Mary Jane Dockeray. | 4237 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Volcanic Sand | Formula | /Images/picture.jpg | Reynisfjara Black Sand Beach, Vik, South Coast of Iceland | acquired 2020 | Matrix | Secondary Mineral(s) | From the collection of Mary Jane Dockeray. | 4238 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Pyrope Sand var. Ant Hill Garnets | Formula | /Images/picture.jpg | Navajo Indian Reservation, McKinley Co., New Mexico | Collected circa 1974, acquired 2020 | Matrix | Secondary Mineral(s) | From the collection of Mary Jane Dockeray. Collected by the Western Fairburn Geological Society of Martin, South Dakota. | 4239 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4240 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4241 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4242 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4243 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4244 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4245 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4246 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4247 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4248 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula | /Images/picture.jpg | Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | 4249 | Hardness | Streak | Specific Gravity | Crystal Form(s) | |
| Principal Mineral(s) | Formula |  |
Locality | When Collected | Matrix | Secondary Mineral(s) | Comments | Reference | Hardness | Streak | Specific Gravity | Crystal Form(s) |
Someday I hope to have my entire collection posted here. Until then, I hope you enjoy what I have posted so far. Come back again as I plan to update my catalog pages monthly.
Page A: Magnificent Obsessions Collection
Page B: Magnificent Obsessions Collection
Index by Mineral Name
Index by Mineral Type
Native Elements
Sulfides, Arsenides, Tellurides
Oxides
Halides
Carbonates
Nitrates and Borates
Sulfates
Phosphates, Arsenates, Vanadates, Chromates, and Uranates
Tungstates, Wolframates, and Molybdates
Silica Group (open network)
Tectosilicates (framework structures)
Phyllosilicates (sheet structures from sharing three oxygen)
Inosilicates (chain silicates)
Cyclosilicates (a ring structure)
Sorosilicates (two tetrahedra share one oxygen)
Nesosilicates (no direct sharing between tetrahedra)
Complex Silicates (share two or more of the other forms)
Organic and Odd/Exception Minerals
Numerical Index; 0000-0249
Numerical Index; 0250-0449
Numerical Index; 0500-0749
Numerical Index; 0750-0999
Numerical Index; 1000-1249
Numerical Index; 1250-1499
Numerical Index; 1500-1749
Numerical Index; 1750-1999
Numerical Index; 2000-2249
Numerical Index; 2250-2499
Numerical Index; 2500-2749
Numerical Index; 2750-2999
Numerical Index; 3000-3249
Numerical Index; 3250-3499
Numerical Index; 3500-3749
Numerical Index; 3750-3999
Numerical Index; 4000-4249
Numerical Index; 4250-4499
Numerical Index; 4500-4749
Numerical Index; 5000-5249
Numerical Index; 5250-5499
Numerical Index; 6250-6499
Numerical Index; 8750-8999
Numerical Index; 9750-9999
Numerical Index; 12250-12499
Numerical Index; 12500-12749
Numerical Index; 13000-13249
Numerical Index; 80750-80999
Current date and time is Sunday, 22-Dec-2024 01:08:51 EST and the Greenwich date and time is Sunday, 22-Dec-2024 06:08:51 GMT. You are viewing this page from 18.225.117.89 and are visitor number 2736. This page was first published on 25 September 2023 and was last updated on Wednesday, 13-Nov-2024 10:15:09 EST.
You can return to The Tomaszewski Family Public Home Page, or visit my personal homepage for more Rockhounding information, or check out my collection of links for rockhounds, or read about Labeling and Cataloging Rocks, Minerals, and Fossils, or review some field trip reports, or learn how to make your own lapidary equipment, or send me Email at Kreigh@Tomaszewski.net