Copper / Silver - CuAg12
Michigan Copper-Silver Specimen
3” x 1.75" x 1.5” / 12 oz
This rare metal combination of native Copper-Silver is a chisel chip from the Calumet & Hecla conglomerate: a mining artifact that was chiseled off a larger specimen by a miner sometime during the late 1800s / early 1900s. Locality: Caledonia & Hecla Mine, Calumet, MI.