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A Geoscience Digital Image Library

1194.jpg
TitleGermanite with tennantite
DescriptionThis sample is mostly tarnished germanite (Cu26Fe4Ge4S32), a rare reddish-gray (when fresh) mineral. It is a primary ore of germanium but, when tarnished, germanite can be overlooked. This specimen also contains tennantite, a copper-iron-arsenic-sulfide. The two, however, are hard to distinguish in this photo. The sample is 8 cm in longest dimension.
LocationNamibia. Near Tsumeb.
PhotographerDarla Sondrol. 2001-07-16.
CollectionUniversity of North Dakota Mineralogy Collection #252.
Key wordsgermanite, tennantite, Namibia, Africa
Tech details647 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1194