Presque Isle, Marquette Co., Michigan, USA

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Cubanite : CuFe₂S₃, Sphalerite : (Zn,Fe²⁺)S
	Presque Isle, Marquette Co., Michigan, USA Twinned, irridescent crystal of cubanite (approximately 1-mm tall) on sphalerite. A. E. Seaman Mineral Museum collection.
© John A. Jaszczak	Photo ID: 215631 View Count: 82

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Presque Isle, Marquette Co., Michigan, USA

Cubanite : CuFe2S3, Sphalerite : (Zn,Fe2+)S

Cubanite : CuFe₂S₃, Sphalerite : (Zn,Fe²⁺)S