Michigan Native Copper Slice new Metaphysical Properties of Chalcopyrite

Metaphysical Properties of Chalcopyrite

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Michigan Native Copper Slice new Metaphysical Properties of ChalcopyriteA unique polished slice of Michigan Native Copper. Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining operations began in 1845 and continued until 1968, yielding more than 5 million tons of refined copper from Michigans copper mines. In the early 1900s, the region led the world in copper production, and Lake Copper became the purity standard against which other refined copper was measured.