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COPPER
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Copper From Keweenaw Peninsula Copper District, Houghton County, Michigan (307.4 grams)
$ 89.00
Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1982 and over 7 million tones of refined copper were recovered from Michigan's copper mines. In the early 1900's, it led the world in copper production and "lake...
Copper included Calcite From Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, Michigan
$ 6,000.00
From Quincy Mine, Hancock, Keweenaw Peninsula Copper District, Houghton County, MichiganLustrous translucent parallel scalenohedral calcite crystals with metallic copper inclusions on matrix. The copper inclusions are visible throughout the crystals.*Custom Lucite base shown included with purchase1.25 lbs, 4'' x 3.5'' x 2.5''

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