  Arsenopyrite.
Description from the source:
Arsenopyrite ( FeAsS mon.), Huanzala, Peru. Aggregates of Arsenopyrite crystas replacing exagonal Pyrrothite, with Pyrite and Quartz, very interesting for the collectors. 6x3,5x2 cm; 56 g.
Source: Simone Citon
Contributor: John Gray
Acquired: 26 September, 2008
Text Updated: 28 September, 2008
Price: Trade
Size: 2.4"
Composition: FeAsS
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