A superb specimen of dioptase crystals decorated with a colorless calcite from Mindouli, Republic of Congo - Brazzaville. The dioptase crystals are brilliantly lustrous with an intense emerald-green color up to 13mm. The crystals are gemmy with marvelous neon green nuances. Translucent to transparent calcite crystals grow above. The contrast is very strong with a wonderful colorfulness. In very good condition – some small nicks and contacts. On acrylic base.

Wonderful!