Pyrrhotite : Fe1-xS
Arsenopyrite : FeAsS
11cm x 7cm x 6cm
Collected by:
Photo added to mindat.org
“A specimen from which I have derived many other crystals (please, take a look at my gallery).
Photo shows massive pyrrhotite (left) & arsenopyrite (right).
Coll. & photo: Giuliano Bettini.
”
Giuliano Bettini - 2nd October 2016
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