Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Locality
- São Pedro, Malacacheta dist., Minas Gerais, Brazil
- Formula
- Fe2+Ta2O6
- Size
- 4.5 x 4.5 x 2.5 cm - Miniature
- Tagged
- pegmatite mineral
Fantastic specimen of Tantalite-Columbite showing complex crystal forms with all faces showing oblique "growth striations" to the intersections of the faces.
- Availability
- Sold
- Locality
- Kabwe mine, Broken Hill, Kabwe dist., Central Province, Zambia
- Formula
- Zn2(PO4)(OH)
- Size
- 3 x 2.5 x 2.5 cm - Thumbnail
- Tagged
- phosphate
Colorless crystals to 3mm.
- Availability
- Available
- Price
- $50.00
- Locality
- Mattagami Lake mine, Mattagami, Quebec, Canada
- Formula
- Sb2Te3
- Size
- 3.5 x 2 x 1 cm - Miniature
- Tagged
- tellurium
- Special Info
- Type Locality
The two minerls in matrix are impossible to tell apart even under a microscope. Both are a silvery white. It has been analyzed and is sawed and polished on one side for testing. On the rough sides you can see several of these grains.
- Availability
- Available
- Price
- $50.00
- Reduced Price
- $15.00
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- Cu12As4S13
- Size
- 3 x 2 x 2 cm - Thumbnail
- Tagged
- sulfide, copper
An interesting Tetrahedrite crystal crusted over with iron-oxides.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Terlingua dist., Brewster Co., Texas, United States
- Formula
- Hg2OCl
- Size
- 7 x 5 x 2.5 cm - Sm Cabinet
- Tagged
- Ore Minerals
Mercury has not been mined in the USA since 1992 when the McDermitt mine in Nevada closed. It is now only produced as a by-product from gold-silver mines. Nonetheless, the USA is the leading exporter of mercury since it is still produced through secondary recovery programs and recycling. A 76 pound mercury "flask" averaged $550-650 in 2008 (USGS). At one time the USA had many mines namely in California. Terlingua, Texas had producing mercury mines. Terlinguaite, like this specimen, was a chief ore at Terlingua. This is an old Carleton Davis specimen with tag.
- Availability
- Available
- Price
- $35.00
- Locality
- Baia Sprie, Maramures Co., Romania
- Formula
- Cu12Sb4S13
- Size
- 6 x 3.5 x 1 cm - Sm Cabinet
- Tagged
- sulfide, copper
In-hand this is really a pleasant specimen with pink Calcite hosting sharp, brilliant Tetrahedrite crystals to 4mm and Pyrite crystals to 1mm.
