- Siderite, Chalcocite
- Small Cabinet, 5.4 x 4.5 x 3.0 cm
- Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
A RARE and showy Tsumeb Mine occurrence of GEM, golden-brown siderite scalenohedrons nicely scattered in a vug in massive chalcocite ore. The siderite crystals reach 6 mm on this excellent specimen from the Rob Smith Collection. The siderite ID was suggested by prominent rare species collector, Dr. Mark Feinglos and confirmed by XRAY. Ex. Rob Smith Collection.