Minerals from Midwest, USA

Copper from White Pine Mine, Ontonagon County, Michigan

Copper from Keweenaw Peninsula Copper District, Michigan

Copper from Found while digging the foundation of Keweenaw Gift Shop, Keweenaw, Michigan

Copper from Keweenaw Peninsula Copper District, Michigan

Copper from Phoenix Mine, Keweenaw County, Michigan

Copper from Keweenaw Peninsula Copper District, Michigan

Copper (arborescent crystals) from Central Mine, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized native copper) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Phoenix Mine, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Minnesota Mine, Ontonagon County, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Phoenix Mine, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Houghton County, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Mass Mine, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Central Mine, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Kearsarge Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (crystallized) from Phoenix Mine, Phoenix, Keweenaw County, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from White Pine Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper (crystallized) from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (crystallized) from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from National Mine, Rockland, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper (crystallized) from Cliff Mine, Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) from Caledonia Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper (crystallized) from Keweenaw Peninsula Copper District, Michigan

Copper (crystallized) with Chrysocolla from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (crystallized) with Epidote from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (cubic crystals) from Phoenix Mine, Keweenaw Peninsula Copper District, Michigan

Copper (cubic crystals) from White Pine Mine, Ontonagon County, Michigan

Copper (native copper) from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) from Central Mine, Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) from Calumet, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (naturally crystallized native copper) from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (naturally crystallized native copper) from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) from Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (naturally crystallized native copper) from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) from White Pine Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper (naturally crystallized native copper) from White Pine Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper (naturally crystallized native copper) from White Pine Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper (naturally crystallized native copper) from Central Mine, Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) on Quartz from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) with Calcite from Keweenaw Peninsula Copper District, Michigan

Copper (naturally crystallized native copper) with Calcite from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper (naturally crystallized native copper) with Tenorite coating from Phoenix Mine, Keweenaw Peninsula Copper District, Michigan

Copper (Skull Formation) from Keweenaw Peninsula, Lake Superior, Michigan

Copper (twisted chiseled blade) from North American Mine, Keweenaw Peninsula Copper District, Michigan

Copper - crystallized from Keweenaw Peninsula Copper District, Michigan

Copper and Analcime from Keweenaw Peninsula Copper District, Michigan

Copper and Calcite from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula, Lake Superior, Michigan

Copper and Calcite from Keweenaw Peninsula Copper District, Michigan

Copper and Calcite from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula Copper District, Michigan

Copper and Calcite from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper and Calcite crystals on Quartz from Keweenaw Peninsula Copper District, Michigan

Copper and Laumontite from Keweenaw Peninsula, Houghton County, Michigan

Copper and Prehnite from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan

Copper and Prehnite from Keweenaw Peninsula Copper District, Michigan

Copper and Silver from Keweenaw Peninsula Copper District, Michigan

Copper and Silver (half-breed) from Keweenaw Peninsula, Michigan

Copper coated with Malachite on Calcite from Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper crystals on Apophyllite from Houghton County, Michigan

Copper crystals on Calcite from Keweenaw Peninsula, Michigan

Copper crystals with Chrysocolla from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper in Amygdaloid from Ontonagon County, Michigan

Copper in Apophyllite from Copper Falls Mine, Keweenaw Peninsula Copper District, Keweenaw County, Michigan

Copper in Basalt from Ahmeek, Keweenaw Peninsula Copper District, Michigan

Copper in Calcite from Calumet, Michigan

Copper in Calcite from Centennial Mine, Keweenaw Peninsula, Michigan

Copper in Calcite from Centennial Mine, Keweenaw Peninsula, Michigan

Copper in Calcite from near Hancock, Houghton County, Michigan

Copper in Calcite from Keweenaw Peninsula, Lake Superior, Michigan

Copper in Calcite from Keweenaw Peninsula, Lake Superior, Michigan

Copper in Calcite from Mass Mine, Ontonagon County, Michigan

Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

Copper in Calcite from Keweenaw Peninsula Copper District, Michigan

Copper in Calcite from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper in Calcite from Calumet, Michigan

Copper in Calcite from Calumet, Michigan

Copper in Calcite on Prehnite from Houghton County, Michigan

Copper in Conglomerate from Calumet & Hecla Mine, Keweenaw Peninsula, Houghton County, Michigan

Copper in conglomerate from Kingston Conglomerate, Keweenaw Peninsula Copper District, Michigan

Copper in conglomerate from Calumet and Hecla Mine, Houghton County, Keweenaw Peninsula Copper District, Michigan

Copper in Datolite from Caledonia Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper in matrix from White Pine Mine, Ontonagon County, Michigan

Copper in Quartz from Keweenaw Peninsula Copper District, Michigan

Copper in Quartz with Epidote from Ahmeek Mine, Keweenaw Peninsula Copper District, Keweenaw County, Michigan

Copper in Shale from White Pine Mine, Ontonagon County, Michigan

Copper in Shale from White Pine Mine, Ontonagon County, Michigan

Copper in Shale from White Pine Mine, Ontonagon County, Michigan

Copper in shale from White Pine Mine, Ontonagon County, Michigan

Copper in shale from White Pine Mine, Keweenaw Peninsula Copper District, Ontonagon County, Michigan

Copper inclusions in Calcite from Keweenaw Peninsula, Lake Superior, Michigan

Copper inclusions in Calcite from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper inclusions in Calcite from Keweenaw Peninsula Copper District, Michigan

Copper on Calcite from Keweenaw Peninsula, Lake Superior, Michigan

Copper on Prehnite from Keweenaw Peninsula, Michigan

Copper on Prehnite from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan

Copper on Prehnite from Keweenaw Peninsula, Lake Superior, Michigan

Copper on Prehnite from Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper on Prehnite from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan

Copper on Prehnite from Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper on Prehnite from Iroquois Mine, 3.5 km northeast of Ahmeek, Keweenaw County, Michigan

Copper on Pumpellyite from Atlantic Mine, Houghton, Michigan

Copper or Bronze Hammer from Keweenaw Peninsula Copper District, Keweenaw County, Michigan

Copper var. Copper Skull from Keweenaw Peninsula, Michigan

Copper var. Herringbone from Keweenaw Peninsula Copper District, Michigan

Copper var. Leaf Copper from Keweenaw Peninsula Copper District, Michigan

Copper var. Shot Copper from Keweenaw Peninsula Copper District, Michigan

Copper var. Shot Copper from Keweenaw Peninsula Copper District, Michigan

Copper var. Skull from Centennial Mine, Calumet, Houghton County, Keweenaw Peninsula Copper District, Michigan

Copper var. Spinel-law Twin Crystals from Keweenaw Peninsula Copper District, Michigan

Copper var. Whitneyite from Superior Mine, Keweenaw Peninsula, Michigan

Copper var. Whitneyite from Seneca Mine, Keweenaw Peninsula, Michigan

Copper with Calcite from Keweenaw Peninsula Copper District, Michigan

Copper with Calcite, Stilbite and Epidote from Keweenaw Peninsula Copper District, Michigan

Copper with Epidote from Keweenaw Peninsula Copper District, Michigan

Copper with Epidote from Keweenaw Peninsula Copper District, Michigan

Copper with Epidote from Keweenaw Peninsula Copper District, Michigan

Copper with Malachite from Keweenaw Peninsula Copper District, Michigan

Copper with Malachite from Keweenaw Peninsula Copper District, Michigan

Copper with Silver from South Kearsarge Mine, Houghton County, Keweenaw Peninsula Copper District, Michigan

Copper, Calcite from Houghton County, Michigan

Copper, Calcite, Analcime, Albite, Quartz from Keweenaw Peninsula Copper District, Michigan

Copper, Calcite, Apophyllite from Cliff Mine, Eagle River, Michigan

Copper, Calcite, Epidote from Tamarack Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper, crystallized from Keweenaw Peninsula, Michigan

Copper, Datolite, Epidote, Chalcocite from Osceola Mine, Keweenaw Peninsula Copper District, Houghton County, Michigan

Copper, float from Copper Falls, Keweenaw Peninsula, Michigan

Copper, Orthoclase, Calcite from Central Mine, Keweenaw Peninsula, Michigan

Copper, Prehnite, Calcite from Keweenaw Peninsula Copper District, Michigan

Copper, Quartz, Epidote from Keweenaw Peninsula Copper District, Michigan

Copper, Silver and Calcite from Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan