Rare Mineral Specimens - search page
- Availability
- Sold
- Locality
- Commercial quarry, Crestmore, Riverside Co., California, United States
- Formula
- Mg9(SiO4)4F2
- Size
- 7 x 4 x 2 cm - Sm Cabinet
Orange crystal grains of Clinohumite in marble matrix. Some of good crystal forms.
- Availability
- Sold
- Locality
- Ingersoll mine, Pennington Co., South Dakota, United States
- Formula
- Fe2+Nb2O6
- Size
- 9.5 x 8 x 6.5 cm - Cabinet
- Tagged
- ore mineral, pegmatite mineral
Large cabinet with black, bladed "Columbite-Tantalite" to 4.5cm in white cleavelandite matrix.
- Availability
- Sold
- Locality
- Harding mine, Taos Co., New Mexico, United States
- Formula
- Fe2+Nb2O6
- Size
- 1.1 x 1.0 x 0.7 cm - Thumbnail
- Tagged
- ore mineral
A small but nice single crystal of Columbite-Tantalite. It could be of the Manganese nomenclature also. My desktop SEM is broke.
- Availability
- Sold
- Locality
- Bolivar mine, Cerro Bonete, Sud Lipez prov., Potosí, Bolivia
- Formula
- Pb2Bi2S5
- Size
- 8 x 5 x 4 cm - Sm Cabinet
- Tagged
- sulfide
You would be hard pressed to find another Cosalite of this calibur. The pocket is situated at the center of the face and is 2cm and filled with long acicular crystals of Cosalite to 8mm. There is yet more along the backside. It is associated with a matrix of Calcite and Chalcopyrite.
- Availability
- Available
- Price
- $95.00
- Locality
- Adelaide mine, Dundas, Tasmania, Australia
- Formula
- PbCrO4
- Size
- 7.5 x 5 x 4.5 cm - Sm Cabinet
Cabinet specimn of red Crocoite crystals to 1.5cm with most showing hollow crystal forms.
- Availability
- Sold
- Locality
- Mohawk mine, Keweenaw Co., Michigan, United States
- Formula
- Cu3As
- Size
- 5 x 4.5 x 3 cm - Miniature
- Tagged
- sulfide, copper
Metallic, heavy mass of tarnished Domeykite. Fresh surfaces reveal a brassy metallic color.
