Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Locality
- Reynolds Tunnel, Summitville dist., Rio Grande Co., Colorado, United States
- Formula
- CuS
- Size
- 5.5 x 5 x 3 cm - Sm Cabinet
- Tagged
- sulfide, copper
Crude, rather weather, platey crystals to 1.5cm with sections cleaved off to expose indigo purple and golded surfaces.
- Availability
- Sold
- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- CuS
- Size
- 5 x 4 x 2 cm - Miniature
- Tagged
- sulfide, copper
Iridescent, deep purple crystals to 5mm with an outgrowth of Acanthite crystals.
- Availability
- Sold
- Locality
- Uranium mine No. 21, Příbram, Czech Republic
- Formula
- Ag3.2Sb0.8
- Size
- 3.9 x 1.7 x 0.3 cm - Miniature
- Tagged
- sulfide, silver
An excellent prismatic group.
- Availability
- Sold
- Locality
- Bayerland mine, Pfaffenreuth, Upper Palatinate, Bavaria, Germany
- Formula
- Pb3Sb2S6
- Size
- 6 x 3 x 2 cm - Sm Cabinet
- Tagged
- sulfide
- Special Info
- Type Locality
Falkmanite is a mineral closely related to Boulangerite but with less lead. Mindat reports that: "A solution of the crystal structure of falkmanite is necessary for its definite classification." The XRD patterns of boulangerite and falkmanite are similar. Indeed some textbooks equate it to Boulangerite. Most recent Hrysl's "Minerals and their Localities" it is listed as a unique mineral.
This specimen's splendid habit is a metallic compact fibrous mass with a beautiful silky finish.
- Availability
- Sold
- Locality
- Dal'negorsk, Primorsky Kray, Russia
- Formula
- PbS
- Size
- 11 x 4.5 x 5 cm - Cabinet
- Tagged
- sulfide
Dal'negorsk mineral specimens seem to be dewindling at the shows these days. So you might want to consider this specimen. It features very well-formed cubo-octahedral crystals of Galena to 1.5cm and Quartz crystals to 2cm.
- Availability
- Available
- Price
- $95.00
- Locality
- Tri-State dist., Jasper Co., Missouri, United States
- Formula
- PbS
- Size
- 12 x 8 x 4 cm - Cabinet
- Tagged
- sulfide
Grey cubic crystals of Galena to 1.2cm on Dolomite. Very nice piece from this once-famous lead/zinc district.
