Keweenaw Michigan Native Copper

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Beautiful specimens of Keweenaw Michigan Native Copper. Prices vary with the specimens depending on shape, size and weight. Michigan's Keweenaw Peninsula is the most important loca lity in the world for pure native copper. Mining began in 1845 and continued until 1968; over 5 million tons 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" was the purity standard to which other refined copper was compared. Long before the mining operations of the past century began in the Keweenaw, prehistoric peoples mined copper from the mineral rich veins. Copper is a chemical element with symbol Cu and atomic number 29. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Metaphysically, Copper is thought to promote harmony and a sense of justice. Each piece is similar, though no item at Crystal Joys is exactly the same as every item uses a unique stone that is non-fabricated. Every item at Crystal Joys is truly "one of a kind". Slight variations in color, size and bead shape exist. Show more