Marvelous cluster of gemmy Dioptase crystals up to 18mm from Pimbi hill, Mindouli, Republic of Congo - Brazzaville. This specimen was mined more that 30 years ago by a geologist and stored. The crystals are strongly glassy lustrous with gorgeous rich emerald-green color and very sharp, perfectly terminated crystals. The quality is superb - the crystals have gem areas with striking neon-green nuances. Better in person. Some small damages. On acrylic base.

Fascinating Dioptase!