21 Million pounds of Copper! The Michigan Mine Site in Rockland, MI The Michigan Mining Co formed in 1899, 5 shafts made up the Mine. It produced over 21mil lbs of refined copper. The Michigan Mine was know to produce nice specimens of both copper and silver. Lava flows of basalt, andesite, and felsite. Follow other pages instagram.com/funintheup instagram.com/upperpeninsulawaterfalls instagram.com/stevejurmu | Upper Peninsula of Michigan
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Native Copper Specimen: Caledonia Mine, Michigan - Etsy
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Michigan sits on a mineral worth billions but it’s 8,000 feet underground. A mine is on the brink of tapping into potash — potassium chloride — after securing state approval and funding. But the $1.2 billion project from Michigan Potash & Salt Company remains shrouded in environmental concerns despite its potential economic benefits. | MLive.com
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