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- Availability
- Available
- Price
- $75.00
- Featured
- Featured in Special Editions
- Locality
- no locality
- Formula
- Gd2O3
- Size
- 3.5 x 1 x 1 cm - Miniature
Gadolinium was discovered in 1880 It is named after the mineral gadolinite of the is named after the Finnish chemist Johan Gadolin. Gadolinium is found in Gadolinite.
- 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
- 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.
- Availability
- Sold
- Locality
- Huanzala mine, Huallanca dist., Huánuco, Peru
- Formula
- PbS
- Size
- 10 x 7 x 5 cm - Cabinet
- Tagged
- sulfide
Octahedral, hopperd, silvery Galena crystals in a nice group. Very showy and interesting.
- Availability
- Sold
- Locality
- Widgiemooltha, Western Australia, Australia
- Formula
- NiCO3
- Size
- 6 x 5 x 2 cm - Sm Cabinet
- Tagged
- nickel
Lime green globular masses. The color on the close-up photo's should be more like that of the first overall photo..
- Availability
- Available
- Price
- $75.00
- Locality
- San Miguel mine, Moctezuma, Sonora, Mexico
- Formula
- (Cu,Fe,Ag)9Se8
- Size
- 2.3 x 2 x 1.4 cm - Thumbnail
- Tagged
- copper, selenium, silver
Silvery crystal grains to 0.5mm and in aggregates to around 2mm. The Geffroyite is scattered throughout the matrix not just the arrowed areas.