Cuprite on copper-bearing Dolomite Kutnohorite black and golden cyclic twinned

black and golden cyclic twinned crystal groups of Cassiterite sitting on white prismatic Quartz crystals

I love the fact that the outer rind on the front is complete all the way around

The gentle color is caused by minor amounts of iron oxide

) and certainly is unlike any other specimen in the lot

and the crystal shows excellent gemminess / translucency when backlit

Cuprite on copper-bearing Dolomite Kutnohorite black and golden cyclic twinnedHere we have a wonderful matrix specimen of Cuprite featuring a sharp, well formed, dodecahedral crystal group of a dark metallic red hue measuring 1. 2 cm aesthetically perched atop matrix and associated with mint green colored copper bearing Dolomite. With strong backlighting, the Cuprite shows a slight bit of translucency around the edges, revealing a brighter red color. The combination of Cuprite with copper bearing Dolomite is RARE from Tsumeb,