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Individual pieces may vary as shown
Copyright 2016
They are a unique formation of agate
The one pound lots contain approximately 20 pieces of 1" in diameter fully tumbled pieces
Native Copper Slab - 24 pc lot Other Agates Individual pieces may vary asNative Copper Slab Native Michigan copper slabs feature copper rich ore with quartz, basalt, epidote, and calcite coated with a thin coat of epoxy to prevent oxidation. The chemical symbol for copper is Cu. Michigan's Keweenaw Peninsula is considered the most important locality in the world for pure native copper Mining began in 1845 and continued through 1982, and over 7 million tons of refined copper were recovered from the mines. At the turn of the
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