  Pyrargyrite.  
Description from the source: 
Pyrargyrite (Ag3 SbS3 trig.), San Genaro, Castrovvirreyna, Peru. Solid crystal cluster. 2,5x1,7x1,5 cm; 15 g with box. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 11 March, 2009 
Text Updated: 12 March, 2009 
Price: Trade 
Size: 1" 
Composition: Ag3SbS3
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