Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Felsobanya, Baia Mare, Maramures Co., Romania
- Formula
- CaFe2+(CO3)2
- Size
- SmCabinet 6x5x4cm
Mineralogically fascinating specimen with multiple generations of paragenesis. The specimen is, at the core, a sulfide of Pyrite and Chalcopyrite. Outward from this mass grew large 1cm Quartz crystals upon which a layer of Ankerite was deposited. Finally, sprinkled upon the Ankerite are tiny, but very flashy, slender Wolframite crystals. Excellent specimen!
- Availability
- Sold
- Locality
- Tae Hwa mine, Chungju, Chungcheongbukdo, South Korea
- Formula
- CaFe2+(CO3)2
- Size
- Miniature 4x4x4cm
This is a nice little piece with tan rhombohedral Ankerite crystals to 7mm set on clear Quartz crystal points.
This specimen comes with a label from the Abe Rosenzweig Collection, a well known collector, dealer, and teacher and the Oberlin, Ohio address dates it between 1970 and 1977, so it's more vintage than antique.
- Availability
- Sold
- Locality
- Near Copper Harbor, Keweenaw Co., Michigan, United States
- Formula
- CaFe2+(CO3)2
- Size
- SmCabinet 6.5x3.5x3cm
- Tagged
- carbonate
Good rhombic crystals of Ankerite to 2mm covering face. It is possibly Calcite with a Hematite coating however.
- Availability
- Sold
- Locality
- Smallcleugh Mine, Nenthead, Alston Moor dist., Cumbria, England
- Formula
- CaFe2+(CO3)2
- Size
- Cabinet 10x6x3cm
- Tagged
- carbonate
A handsome basic mineral specimen from a well-known Cumbrian locality well-known to collectors of the area. This specimen sits perfectly well on its own as seen in the first photo. The other photos show the saddle-shaped crystals with a pearly luster and curvy shapes of the Ankerite crystals generally to 4mm.
