Selections from Kreigh Tomaszewski's
Rock and Mineral Collection

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. Click on any image for a larger picture, and then use your browser Back button to return here.



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; 4250-4499
Numerical Index; 4500-4749
Numerical Index; 5000-5249
Numerical Index; 5250-5499
Numerical Index; 6250-6499
Numerical Index; 8750-8999
Numerical Index; 12250-12499
Numerical Index; 12500-12749
Numerical Index; 13000-13249
Numerical Index; 80750-80999



Selections from Kreigh Tomaszewski's
Rock and Mineral Collection
Principal Mineral(s) Formula Locality When Collected Matrix Secondary Mineral(s) Comments Reference Hardness Streak Specific Gravity Crystal Form(s)
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Mexico acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0192 Hardness Streak Specific Gravity Crystal Form
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Canada acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0193 Hardness Streak Specific Gravity Crystal Form
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

California acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0194 Hardness Streak Specific Gravity Crystal Form
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Mexico acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0195 Hardness Streak Specific Gravity Crystal Form
Chalcocite   individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Clark Mine, Copper Harbor, MI 1997   Chalcopyrite, Enargite?   #0163        
Cristobalite   individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

California acquired 1996 (from Edmund Scientific) Obsidian     #0162        
Hematite   individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Lake Superior District     Quartz, Muscovite, Vivianite   #0164   red   botryoidal
Native Copper Cu individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Quincy Mine, Hancock, MI 1997   Chlorite   #0160        
Rose Quartz   individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

South Dakota acquired 1996 (from Edmund Scientific) Quartz micro fibers of dumortierite [Al3(BO3)(SiO4)3O3] give Rose Quartz its color and prevents the formation of crystals.   #0161       None (massive)
Ulexite NaCaB5O9 8H2O individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Death Valley, California acquired 1997   Pale green and brown bands indicate the presence of two unknown minerals in this specimen. Named this mineral in 1850 by James Dwight Dana after George Ludwig Ulex (1811-1833), the German chemist who discovered the mineral. Reference #0205 2 1/2 white 1.9 Acicular
Uvarovite Ca3Cr2Si3O12 Ural Mountians, Russia Acquired 1999 (from Fossils Inc) may be Chromite in Peridotite Quartz Named after Count S.S. Uvarov by G.H. Hess in 1832. The Count (1786-1855) was President of the Academy of St. Petersburg. #0416,#0447 6 1/2 - 7 1/2 Colorless 3.8 dodecahedron, trapezohedron
Black Rutile Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Bahia, Brazil Acquired 1999, Pooh's Corner Quartz Secondary Mineral(s) Comments #0172 Hardness Streak Specific Gravity Crystal Form
Golden Rutile in Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Bahia, Brazil Acquired 1999, Pooh's Corner Quartz Quartzite? Clear quartz with edge of matrix - rutile radiating out of matrix. #0173 Hardness Streak Specific Gravity Crystal Form
Hornblende Pyroxene Diorite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Locality acquired 1950s Matrix Secondary Mineral(s) Comments #0165 Hardness Streak Specific Gravity Crystal Form
Quartz Sandstone Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Munising Falls, Alger County, MI 1999 by Andy Tomaszewski Matrix Banded with brown and yellow layers Comments #0168 Hardness Streak Specific Gravity Crystal Form
Heulandite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Silver Mtn., Houghton County, MI 1999 by Andy Tomaszewski Matrix Secondary Mineral(s) Comments #0167 Hardness Streak Specific Gravity Crystal Form
Bornite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Iron Bridge, Ontario, Canada 1981 Chalcopyrite Secondary Mineral(s) Comments #0169 Hardness Streak Specific Gravity Crystal Form
Bornite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Iron Bridge, Ontario, Canada 1981 Chalcopyrite Secondary Mineral(s) Comments #0223 Hardness Streak Specific Gravity Crystal Form
Optical Quartz Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Corning Glass Works, New York acquired early 1960s Matrix Secondary Mineral(s) Comments #0166 Hardness Streak Specific Gravity Crystal Form
Native Copper Formula
Keweenaw Peninsula acquired 1998 Calcite Green tint to calcite suggests malachite or other copper compound Comments #0171 Hardness Streak Specific Gravity Crystal Form
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Quincy Mine, Hancock, MI 1997 Keweenaw Lava Native Copper, Cuprite, Malachite, Chlorite, Suiderite, Quartz I think there may be a couple more minerals in this mixed up seam edge #0174 Hardness Streak Specific Gravity Crystal Form
Lake Superior Agate Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

underwater at Lake Superior shoreline by McClain State Park, near Hancock, MI 1997 Matrix Secondary Mineral(s) Comments #0221, 0222 Hardness Streak Specific Gravity Crystal Form
Pencil, Mass, Selenite CaSO4 2H2O Alabastine mine
Grand Rapids, Michigan
1988 Matrix Secondary Mineral(s) Probably named for the Greek word gypsos meaning plaster. Gypsum mining in Grand Rapids started in the spring of 1843 when Richard E. Butterworth uncovered a layer of it while plowing. This turned into the Grand Rapids Gypsum Co. in 1860 (and bought by Domtar Industries Inc. in 1981), which is the oldest continuously operating gypsum mine in in the world. The Alabastine mine was a competetor who's output was used to make sparkling/glittering alabastine paint.
Traded to Gary Brown February 2000
Reference #0289 Hardness Streak Specific Gravity Crystal Form(s)
Pencil, Mass, Honey Selenite CaSO4 2H2O Alabastine mine
Grand Rapids, Michigan
1988 Matrix Secondary Mineral(s) Probably named for the Greek word gypsos meaning plaster. Gypsum mining in Grand Rapids started in the spring of 1843 when Richard E. Butterworth uncovered a layer of it while plowing. This turned into the Grand Rapids Gypsum Co. in 1860 (and bought by Domtar Industries Inc. in 1981), which is the oldest continuously operating gypsum mine in in the world. The Alabastine mine was a competetor who's output was used to make sparkling/glittering alabastine paint.
Traded to Gary Brown February 2000
Reference #0289 Hardness Streak Specific Gravity Crystal Form(s)
Lake Superior Agate Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

offshore by Agate Beach, Fort Wilkins State Park, near Copper Harbor, MI 1997 Matrix Secondary Mineral(s) Comments #0232 Hardness Streak Specific Gravity Crystal Form
Float Copper Cu individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Lake Superior shoreline by McMlain State Park near Hancock, MI. 1997 Matrix malachite crust and two crystals of martite. Collected by Monica Tomaszewski within seconds of my telling her about what I was searching for (and I didn't find any). #0234 Hardness Streak Specific Gravity Crystal Form
Chalcopyrite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Iron Bridge, Ontario, Canada 1984 Calcite and Quartz Bornite, Pentlandite I think there are a couple unidentified minerals in this (and some of the calcite crystals may be something else because they look like a feldspar) #0175 Hardness Streak Specific Gravity Crystal Form
Jade Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

China acquired 1980 Matrix Secondary Mineral(s) Green moss jade #0176 Hardness Streak Specific Gravity Crystal Form
Kyanite  Formula  

 Minas Gerais, Brazil  acquired 1999  Quartz  Citrine, rutile?  Comments #0259  Hardness  Streak  Specific Gravity  Crystal Form(s)
Jade Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

China acquired 1980 Matrix Secondary Mineral(s) Green moss jade #0177 Hardness Streak Specific Gravity Crystal Form
Prehnite, Calcite, Cuprite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Quincy Mine, Hancock, MI 1997 Keweenaw Lava Gypsum, Copper, Olivine At least one more unidentified mineral #0178 Hardness Streak Specific Gravity Crystal Form
Granite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Grand Rapids 1996 Matrix Secondary Mineral(s) This glacial gravel stone was heart shaped when my daughter Kalinda Tomaszewski found it. She asked me to tumble polish it, which I did. Much later I received it back as a present. #0179 Hardness Streak Specific Gravity Crystal Form
Thomsonite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

offshore by Agate Beach, Fort Wilkins State Park, near Copper Harbor, MI 1997 Keweenaw Lava Several unidentified Secondary Minerals in vugs in the matrix Comments #0180 Hardness Streak Specific Gravity Crystal Form
Thomsonite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

offshore by Agate Beach, Fort Wilkins State Park, near Copper Harbor, MI 1997 Keweenaw Lava Several unidentified Secondary Minerals in vugs in the matrix Comments #0181 Hardness Streak Specific Gravity Crystal Form
Thomsonite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

offshore by Agate Beach, Fort Wilkins State Park, near Copper Harbor, MI 1997 Keweenaw Lava Several unidentified Secondary Minerals in vugs in the matrix Comments #0182 Hardness Streak Specific Gravity Crystal Form
Thomsonite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Keweenaw Peninsula acquired in 1997 from Seaman Mineral Museum, Houghton, MI None   Comments #0183 Hardness Streak Specific Gravity Crystal Form
Thomsonite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Keweenaw Peninsula acquired in 1997 from Seaman Mineral Museum, Houghton, MI None   Comments #0184 Hardness Streak Specific Gravity Crystal Form
Bloodstone Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Locality Acquired 1981 Matrix Secondary Mineral(s) Comments #0185 Hardness Streak Specific Gravity Crystal Form
Bloodstone Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Locality acquired 1981 Matrix Secondary Mineral(s) Comments #0186 Hardness Streak Specific Gravity Crystal Form
Fluorite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Mexico acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0187 Hardness Streak Specific Gravity Crystal Form
Fluorite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Mexico acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0188 Hardness Streak Specific Gravity Crystal Form
Conichalcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Utah acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0189 Hardness Streak Specific Gravity Crystal Form
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Mexico acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0190 Hardness Streak Specific Gravity Crystal Form
Calcite Formula individual specimen picture not yet available

this specimen may be included in the group pictures at the beginning and end of this section

Mexico acquired 1996 (from Edmund Scientific) Matrix Secondary Mineral(s) Comments #0191 Hardness Streak Specific Gravity Crystal Form
Principal Mineral(s) Formula Locality When Collected Matrix Secondary Mineral(s) Comments Reference Hardness Streak Specific Gravity Crystal Form(s)


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Current date and time is Tuesday, 28-Mar-2017 00:22:21 EDT and the Greenwich date and time is Tuesday, 28-Mar-2017 04:22:21 GMT. You are viewing this page from 54.204.199.76 and are visitor number 78581. This page was first published on 1 September 1998 and was last updated on Monday, 24-Jan-2005 00:01:34 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