











Search Archived Mineral Specimens
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- Ca3Ge4+(SO4)2(OH)6·3H2O
- Size
- Miniature 3.5x1.5x1.5cm
- Special Info
- EDS Confirmed
- Special Info
- Type & Only Locality
Silky white divergent groups of Schaurteite, a germanium sulfate, in an area of 13 x 5mm in Germanite matrix. Near the edges of this group are well-defined single crystals of almost clear prismatic Schaurteite to 1mm. There are also yellowish brown crystals of Siderite (EDS). The Schaurteite was verified with EDS. Excellent specimen.
- Availability
- Sold
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- Ca3Ge4+(SO4)2(OH)6·3H2O
- Size
- Thumbnail 1.5x0.9x0.5cm
- Special Info
- Type Locality
Snow white mass composed of fibrous crystals. Very Rare. There is an unidentified orange-yellow or flesh colored crystalline strip down the middle of this specimen.
- Availability
- Sold
- Locality
- Tae Hwa mine, Chungju, Chungcheongbukdo, South Korea
- Formula
- CaWO4
- Size
- Miniature 3.5x4x2cm
- Special Info
- Fluorescent
Several nice purple-gray dipyramidal Scheelite crystals to over 1cm set in tan Dolomite crystal matrix, the Scheelite crystals fluoresce blue-white under SW UV light. Nice piece!
This specimen comes with a label from the Abe Rosenzweig Collection, a well known collector, dealer, and teacher and the Oberlin, Ohio address dates it between 1970 and 1977, so it's more vintage than antique.