A cool specimen of gemmy dioptase crystals from Mindouli, Congo - Brazzaville. The dioptase is strongly lustrous with a gorgeous dark emerald-green color and very sharp, perfectly terminated crystals.  One is doubly terminated. The quality is superb - the crystals are gemmy with marvelous neon-green nuances. They sit on a white calcite base and form excellent focal points. In very good condition – some outside edge contacts. On acrylic base.

Fine!