Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Locality
- Näverberg, Falun, Dalarna, Sweden
- Formula
- ZnAl2O4
- Size
- 6 x 3 x 2.5 cm - Sm Cabinet
Gahnite is the zinc Spinel at the opposite end of the Spinel (Mg)- Gahnite (Zn) series. This specimen contains large anhedral bluish grains to 5mm.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Silverfields mine, Cobalt dist., Ontario, Canada
- Formula
- PbS
- Size
- 9.5 x 8 x 1 cm - Cabinet
- Tagged
- Ore Minerals
Excellent slab of Galena with Arsenopyrite and Chalcopyrite mostly likely from Petruk's group 5 mineralization, the Fe-As assemblage. This assemblage is characterized be a high content of Arsenopyrite. Cobalt was a world class Silver deposit which was discovered by a blacksmith in 1903. The pop-up photos show some unique and unusual ore textures.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Monte Somma, Vesuvius, Campania, Italy
- Formula
- PbS
- Size
- 4.5 x 3 x 2.5 cm - Miniature
- Tagged
- sulfide
- Special Info
- Antique Specimen
1 to 4mm Galena cleavages in matrix. This is old specimen with a Geologic Institute of the University of Amsterdam with label (see prov. tab).
- Availability
- Sold
- Locality
- Magmont mine, Iron Co., Missouri, United States
- Formula
- PbS
- Size
- 4 x 3 x 2 cm - Miniature
- Tagged
- sulfide
Miniature cluster of cubo-octahedral Galena crystals.
- Availability
- Sold
- Locality
- Schisshyttan, Smedjebacken, Dalarna, Sweden
- Formula
- □Mg2(Mg3Al2)(Si6Al2)O22(OH)2
- Size
- 4 x 3 x 1.5 cm - Miniature
Green sheaflike crystal fans embedded in matrix. Gedrite is an amphibole found in medium to high grade metamorphic rocks.
- Availability
- Available
- Price
- $35.00
- Locality
- Zinkwand, Obertalbach valley, Schladming, Styria, Austria
- Formula
- Ni(As,S)2
- Size
- 0.8 x 1 x 0.5 cm - Thumbnail
- Tagged
- sulfide
- Special Info
- Type Locality
- Special Info
- Microprobed
Small 1cm chip with silvery anhedral Gersdorffite and Nickeline crystals visible under magnification.
The Cureton Collectino label has this as Gersdorffite-Pa3, a polytype naming system that apparently is no longer used for this species.
Microprobe confirmed.
