Arsenopyrite, Sphalerite mineral specimen from the Olympiada mine in Macedonia Greece. 

A wonderful example and rare to see nowadays from this locality of well formed Arsenopyrite crystals with shiny black Sphalerite crystals and minor micro terminated Quartz crystals. Specimens from this locality come from old miners and were collected decades ago. Specimen comes from the historically mined but now closed and refilled upper levels of the Olympiada mine in Northern Greece.
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