Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Oms, Pyrénées-Orientales, Languedoc-Roussillon, France
- Formula
- Ni2Fe3+(OH)6[Sb(OH)6]
- Size
- Thumbnail 1.5x1.5x1cm
- Special Info
- Type & Only Locality
Super tiny yellow, less than 0.25mm, discoidal plates resembling saucers. It is a member of the hydrotalcite group and is a hydroxide of nickel, iron, and antimony. One locality noted in the world thus far. In the photos you will see the yellow areas which contain the crystals of Omsite.
- Availability
- Sold
- Locality
- Musonoi mine, Kolwezi, Shaba Cu belt, DR of Congo
- Formula
- (Pd,Cu)7Se5
- Size
- Thumbnail 1x0.9x0.8cm
- Tagged
- copper
- Special Info
- Type Locality
It is hard to say exactly what is the Oosterboschite. The original description describes it as "white-yellow with a cream tint", which can fit plenty of the tiny grains in this sandy matrix. But they should be metallic looking. It is associated with Trogtalite, a cobalt selenide which are probably the metallic looking grains but could be submicroscopic. Also, Marthozite are the green colored crystals, Originally from the Pinch collection with tag (see prov. tab).
- Availability
- Sold
- Locality
- Manganese mine, Copper Harbor, Keweenaw Co., Michigan, United States
- Formula
- Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O
- Size
- Miniature 5x3x3cm
Very rich specimen loaded with rusty red fibrous radial crystals. Excellent piece.
- Availability
- Sold
- Locality
- Manganese mine, Copper Harbor, Keweenaw Co., Michigan, United States
- Formula
- Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O
- Size
- SmCabinet 8x5.5x2.5cm
Finely disseminated rusty red Orientite in matrix. Orientite is a rare manganese silicate found in enriched Mn-deposits with Braunite.
- Availability
- Sold
- Locality
- Near Copper Harbor, Keweenaw Co., Michigan, United States
- Formula
- Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O
- Size
- Thumbnail 2.5x2.5x2.5cm
Red-brown platy crystals n radial patterns of Orientite throughout black crystalline Braunite.
- Availability
- Sold
- Locality
- Twin Creeks mine, Humboldt Co., Nevada, United States
- Formula
- As2S3
- Size
- Miniature 5x4x4cm
- Tagged
- sulfide
- Special Info
- Classic Locality
Cluster of saturated gemmy-orange Orpiment crystals to 1cm, with a beautiful adamantine luster and slight striations on a plastic stand.
These Orpiments from Twin Creeks are a staple for collectors of minerals from Nevada and the US desert southwest.
