Copper

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Copper Cu with Calcite, White Pine Mine, White Pine, Ontonagan Co., Michigan

Copper Cu with Calcite and Malachite, White Pine Mine, White Pine, Ontonagan Co., Michigan

Copper Cu with Calcite and Malachite, Ojibway Mine, Ojibway, Keweenaw Co., Michigan

Copper Cu Skull, Centennial Mine, Centennial, Keweenaw Co., MI

Copper Cu I Upper Peninsula of Michigan

Copper Cu II Upper Peninsula of Michigan

Copper Cu III Upper Peninsula of Michigan

Copper Cu IV Upper Peninsula of Michigan

Copper Cu V Upper Peninsula of Michigan

Copper Cu crystals with Calcite Upper Peninsula of Michigan

Copper Cu VI Upper Peninsula of Michigan

Copper Cu with Cuprite Cu2O Baltic Mine, Baltic, Houghton Co., Michigan

Copper Cu, with Silver Ag, Upper Peninsula of Michigan

Copper Cu, I, White Pine Mine, Ontonagon County, Michigan

Copper Cu VII, Mass City, Michigan

Copper Cu in Prehnite Ca2Al(AlSi3O10)(OH)2, Caledonia Mine, Ontonagon Co., Michigan

Copper Cu, II, White Pine Mine, Ontonagon County, Michigan

Copper Cu with Calcite, Keweenaw County, Michigan

Copper Cu Ray Mine, Pinal Co., Arizona

Copper Cu

Copper Cu Crystals I, Rockland, MI

Copper Cu Crystals II, Rockland, MI

Copper Cu Crystal on Mass, Keweenaw Co., MI

Copper Cu I, Central Mine Shaft 4, Central, Keweenaw Co., MI

Copper Cu II, Central Mine Shaft 4, Central, Keweenaw Co., MI

Copper Cu III, Central Mine Shaft 4, Central, Keweenaw Co., MI