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Standup with a flat base and back and natural edges, featuring copper as a natural ore. The front has been polished and sealed to prevent further oxidation of the copper.
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. Copper is commonly an ore of quartz, epidote, or basalt. The chemical symbol for copper is Cu.
4" x 3.5" x 1.25"
1 lb 13.4 oz