Chalcopyrite specimen at Kingdom of Crystals Museum. Munich, Germany.

Chalcopyrite specimen (CuFeS<sub>2</sub>) at Kingdom of Crystals Museum. Munich, Germany.

Chalcopyrite specimen (CuFeS₂) at Kingdom of Crystals Museum. Munich, Germany.
Photo by Jim Steinhart © 2016, all rights reserved. (Ref: DYMKUG17)

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Kingdom of Crystals , Munich