A cool specimen of high quality dioptase crystals to 15mm from  Mindouli, Congo - Brazzaville. The dioptases are strongly lustrous with a gorgeous dark emerald-green color and very sharp, well terminated crystals. The quality is superb - the crystals are gemmy with marvelous neon-green nuances. It looks better in person. Some nicks and contacts. On acrylic base.

Marvelous!