  Renierite.  
Description from the source: 
Renierite ((Cu,Zn)11(Ge,As)2Fe4S16 tetr.), Kipushi, Shaba, Dem. Rep. of Congo. Perfect example, with brown-orange-reddish cristalline masses. 1,5x1,2x1 cm; 3 g. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 28 January, 2009 
Text Updated: 29 January, 2009 
Price: Trade 
Size: 0.6" 
Composition: (Cu,Zn)11(Ge,As)2Fe4S16
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