Dims: 1.0 x 0.8 x 0.7" (2.5 x 2.0 x 1.8 cm)
Wt: 16.4 g
Copper Falls, Keweenaw Peninsula, Michigan, U.S.A.
This small thumbnail specimen consists of intergrown formations of both native Copper and native silver. The Copper formation is mostly obscured by that of the silver, but is more crystalline and has a more interesting form. It has the standard copper-red coloration and a moderate metallic luster, and shows definite crystalline tendencies, and maybe even a few faces. While there is probably more silver than Copper on the piece, it has no discernable crystal form. Its color is the standard silvery-white and its metallic luster ranges from moderately dull to bright. There is no host rock present. Interestingly, there is some odd pale-yellow-to-pale orange discoloration with a slight greenish hint in a few areas where the two metals intersect. I am wondering if they may have possbily blended enough to form some sort of crude alloy?