Germanite

Germanite is a rare copper iron germanium sulfide mineral, Cu₁₃Fe₂Ge₂S₁₆. It contains Ga, Zn, Mo, As, and V as impurities. It crystallizes in the isometric system. It is a metallic pale greyish-pink, has a Mohs scale of mineral hardness of 4, and a specific gravity of 4.5.

It was first discovered 1922. It is found in Namibia in the Tsumeb Mine, Tsumeb. Other occurrences include: Argentina, Finland, France, Greece, Russia, and Zaire [http://www.mindat.org/min-1681.html] .

References

* [http://www.mindat.org/min-1681.html Mindat.org]
* [http://webmineral.com/data/Germanite.shtml Webmineral]