Chrysocolla 4mm Microfaceted Round - 15-16 Inch feature_317 black or brown veins running

black or brown veins running through it in web-like patterns

It ranges from almost completely transparent to an almost opaque brownish to gray crystal

it is a gray or brown mineral with a pearly luster

neither a crystal nor a mineral

Weight: grams: 160-210 grams

Chrysocolla 4mm Microfaceted Round - 15-16 Inch feature_317 black or brown veins runningChrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue to greens. It often also occurs with colors of rust, copper, black, white and reddish brown in speckles, veins and brecciated patterns. It is a very soft stone typically found near copper deposits. Chrysocolla was first described by Theosphrastus, a Greek philosopher and botanist who also named the stone, in 315 BCE.