Cubic Native Copper crystals - Osceola Mine, Osceola, Houghton Co., Michigan

Cubic Native Copper crystals - Osceola Mine, Osceola, Houghton Co., Michigan
Cubic Native Copper crystals - Osceola Mine, Osceola, Houghton Co., Michigan

Cubic Native Copper crystals - Osceola Mine, Osceola, Houghton Co., Michigan -- source link


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