Native Copper Slab - 24 pc lot Other Agates "The River Runs North: A

"The River Runs North: A Story of Montana Moss Agate" by Tom Harmon

Individual pieces may vary as shown

Decaying organic material is replaced with a silica rich solution which

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emotional and physical effects

Native Copper Slab - 24 pc lot Other Agates "The River Runs North: ANative 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