Copper / Silver - CuAg12

Michigan Native Copper-Silver Specimen 

3” x 1.75" x 1.5” / 12 oz 

This mining artifact from the Calumet & Hecla Conglomerate Lode contains a rare metal combination of both native Copper & Silver. The bottom of the specimen shows evidence that it was chiseled off a larger specimen at an unknown date, perhaps by an unscrupulous miner looking to pocket some extra cash. Locality: Caledonia & Hecla Mine, Calumet, MI.