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Catalog Mining Copper Ore

Michigan Native Copper Michigans Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1968 and over 5 million tons of refined copper were recovered from Michigans copper mines. In the early 1900s it led the world in copper production and Lak.

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Catalog Mining Copper Ore

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