Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Locality
- Předbořice, Bohemia, Czech Republic
- Formula
- Cu10Hg2Sb4Se13
- Size
- 4.3 x 2.9 x 1.5 cm - Miniature
- Tagged
- copper, selenium
- Special Info
- Type Locality
- Special Info
- EDS Confirmed
- Special Info
- Microprobed
This is a polished section on one side and rough on the flip side. Both of the minerals are rare selenides. Josef Vajdak did the analytical work by microprobe which shows the close intimate relationship of the two minerals. The Clausthalite and Hakite can be seen in the photos as silvery white veins. It is impossible to discern the two in hand specimen. Please click the provenance tab for the analytical information, which identifies the areas which are Hakite and Clausthalite. The analysis is included with the specimen. Other minerals in the matrix include Uraninite, Tetrahedrite, and Chalcopyrite. A handful of these specimens can be seen on Mindat for this locality.
- Availability
- Sold
- Locality
- Repete mine, San Juan Co., Utah, United States
- Formula
- (UO2)3(Se4+O3)2(OH)2·5H2O
- Size
- 4.5 x 3 x 1 cm - Miniature
- Tagged
- selenium
- Special Info
- Radioactive!!
- Special Info
- Type Locality
Canary yellow, acicular crystals in groups to 2mm on shaley matrix.
- Availability
- Sold
- Locality
- Otto Mountain, near Baker, San Bernardino Co., California
- Formula
- Pb2Cu2(Se4+O3)SO4(OH)4
- Size
- 2 x 1.7 x 1.2 cm - Thumbnail
- Tagged
- copper, selenium
Bundles of blue cystals in groups to 0.75mm with a host of other minerals.
- Availability
- Sold
- Locality
- Fire Creek mine, Lander Co., Nevada, United States
- Formula
- Ag2Se
- Size
- 4.5 x 3.5 x 2 cm - Miniature
- Tagged
- selenium, silver
An outstanding specimen of Naumannite with tiny 1 to 1.5mm crystals. The crystals are disphenoidal, which form faces of isosceles triangles. These triangles are clearly evident on these crystals. There are also other forms of crystals. The largest group is 5mm. This occurence is new for this locality.
- Availability
- Available
- Price
- $195.00
- Locality
- Fire Creek mine, Lander Co., Nevada, United States
- Formula
- Ag2Se
- Size
- 2.1 x 1.1 x 1 cm - Thumbnail
- Tagged
- selenium, silver
1mm crystals, some with trainglar faces some as plates with Quartz. Excellent specimen.
- Availability
- Sold
- Locality
- Fire Creek mine, Lander Co., Nevada, United States
- Formula
- Ag2Se
- Size
- 4 x 3 x 1.2 cm - Miniature
- Tagged
- selenium, silver
Excellent specimen with large groups of Naumannite to over 7mm composed of individual and distinct crystals with triangular faces. These faces are isosceles triangles which as the literature says are faces of an orthorhombic disphenoid.
