Stringer ore main content.
Stringer Ore AMNH/R.Mickens

Exhibition Text

This rock contains brassy veins of chalcopyrite (the yellow copper-iron sulfide mineral) in dark metamorphosed volcanic rocks. The chalcopyrite-rich stringers, or narrow veins, represent fractures in the rock through which hot, metal-bearing waters once flowed.    

Provided by Falconbridge Limited, Timmins, Ontario, Canada

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