Mineral Specimen #3971 Copper Crystals, K Feldspar variety: Adularia, Epidote
Butler Lode, Mass Mine, Mass City, Ontonagon Co., Michigan
A mass of Copper crystals rising from a bed of light pink/orange colored, small, well defined Adularia crystals with some minor green colored Epidote micro crystals. The Copper has an old patina.
The specimen is in very good condition with no appreciable damage.