Very rare combo specimen of Cuprite with Copper and minor Silver. The Silver is very uncommon minerals for Rubtsovskoe Cu-Zn-Pb deposit. Many sharp and lustrous dark Cuprite octahedrons grow in a cluster. Some small clusters of Copper grow among them. Micro crystals of Silver are seen on the Copper. Displays nicely from many angles. For references see the issue of The Mineralogical Record vol. 45, # 4, July-August 2014. In very good condition – some small nicks and contacts. On acrylic base.
Superb!