Dioptase & Quartz on Calcite- D.R. Congo Crystals often form in globular

Crystals often form in globular aggregates as seen in this specimen

is a chatoyant variety of quartz that gets its silky appearance from its parallel growth of quartz crystals

There is one larger crack that does not seem to go through the whole tooth

It gets its name from the Greek word "kuanos"

making it perfect for setting in jewelry

Dioptase & Quartz on Calcite- D.R. Congo Crystals often form in globularDioptase is known for being a mesmerizing mineral. Something about its deep emerald green color just grabs everyone's attention. This specimen contains a couple of smaller quartz crystals scattered around, as well as a base of calcite that turns orange under ultraviolet light! Size: 1. 6 x 1. 0 x 0. 7 in. Weight: 0. 8 oz Dioptase is a fragile, copper based mineral that has been used for almost 9000 years. It got its name from the greek words "dia",