Crude blocky Native Silver crystals cover a nugget shaped mass of Native Copper from the famous Copper Country of Houghton County in the Keweenaw Peninsula, Upper Michigan, USA. Intergrown clusters of gnarled Native Silver crystals measure to 2.6 cm with any vugs infilled by milky Quartz woven throughout with hackly filaments of metallic red Native Copper. The Native Silver ranges from bright tin-white metallic silver to dull grey black, a result of surface oxidation. Bright metallic coppery orange red Native Copper shot through with clasts of opaque milky Quartz forms the base on which the Native Silver has developed. At the transition between the Native Copper and Silver, eutectic mixtures of copper-silver are displayed. This is a splendid example of this classic combination of the two elements, Silver and Copper, from Keweenaw.
