Rare Mineral Specimens - search page
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- 8 x 6 x 4 cm - Sm Cabinet
- Tagged
- phosphate, pegmatite mineral
Deep dark red micro crystals of Bermanite with rich coverage in voids with micro Hureaulite and Jahnsite.
- Availability
- Sold
- Locality
- Mike mine, San Juan Co., Colorado, United States
- Formula
- Cu3Ag2Pb3Bi7S16
- Size
- 2 x 2 x 0.4 cm - Thumbnail
- Tagged
- sulfide, copper, silver
- Special Info
- Microprobed
This is a cut and microprobed specimen from the stock of Dr. Jaroslv Hyrsl. The Berryite can be seen as the black, slender blades. The Pavonite crystals are also the blakes blades so they cannot be distinguished visually. Aikinite is also present which further complicates the issue. Both Berryite and Pavonite are rare silver-bismuth sulfides.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- PbFe3+3(AsO4)(SO4)(OH)6
- Size
- 2.5 x 2 x 1.5 cm - Thumbnail
- Tagged
- arsenate
NOt actually sold but returned to Amo
Interesting Amber brown to brownish red tabular, pseudo-hexagonal crystals to 2mm in clusters.
- Availability
- Sold
- Locality
- Shap Pink quarry, Shap Rural, Eden, Cumbria, England
- Formula
- Bi2S3
- Size
- 7.5 x 7 x 4 cm - Sm Cabinet
- Tagged
- sulfide
Silvery, bladed Bismuthinite to 2.5cm with Pyrite on porphyritic granite with large pink Microcline crystals. Collected in 1972. J. A. Jones collection with tag.
- Availability
- Sold
- Locality
- Blue Lizard mine, Red Canyon, San Juan Co., Utah, United States
- Formula
- NaAl(UO2)2(SO4)4·18H2O
- Size
- 2 x 1.5 x 1 cm - Thumbnail
- Special Info
- Fluorescent
- Special Info
- Type Locality
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
Bobcookite is a relatively new IMA mineral named after my good friend Dr. Bob Cook. It is easily observed as it is highly flourescent green and occurs as yellowish green glassy crystals with white silky Pickeringite. This is the fourth occurence, but all are in the same district. It is not found anywhere else.
- Availability
- Available
- Price
- $95.00
- Locality
- Ermakovskoe beryllium deposit, Buryatia, Siberia, Russia
- Formula
- Ca4Be3AlSi9O25(OH)3
- Size
- 1.4 x 1.0 x 0.6 cm - Thumbnail
- Tagged
- beryllium
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
Bohseite is a very rare two-locality beryllium mineral. This specimen is yellow and compact fibrous. It originated with Dr. Igor Pekov, who performed the analysis.
