• Copper / Silver - CUAG17.5

Copper / Silver - CUAG17.5

Native Copper-Silver Specimen, Keweenaw Peninsula 

10" x 1.25" x 7.25" / 17.25 lbs

This very rare native metal combination was found in the Keweenaw Peninsula of Michigan; associated with native copper deposits. It is an end cut from a larger specimen on Float Copper, coated with epoxy to prevent oxidization. The copper contains inclusions of cuprite, epidote, malachite and silver.