Osceola No. 3, Osceola Mine, Osceola, Houghton Co., Michigan, USA

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Copper : Cu, Calcite : CaCO₃, Prehnite : Ca₂Al₂Si₃O₁₂(OH)
	Osceola No. 3, Osceola Mine, Osceola, Houghton Co., Michigan, USA Copper wires emerging from calcite in basalt. Prehnite is also present on the specimen. The wires are approx. 1 cm. long. This specimen was self-collected in August, 2003.
© Paul T. Brandes	Photo ID: 215133 View Count: 42

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Osceola No. 3, Osceola Mine, Osceola, Houghton Co., Michigan, USA

Copper : Cu, Calcite : CaCO3, Prehnite : Ca2Al2Si3O12(OH)

Copper : Cu, Calcite : CaCO₃, Prehnite : Ca₂Al₂Si₃O₁₂(OH)