Nice Dioptase crystal from Pimbi hill, Mindouli, Republic of Congo - Brazzaville. This specimen was mined more that 30 years ago from a geologist and stored. The crystal is strongly lustrous with dark emerald-green color and sharply terminated. The tip is gemmy with marvelous neon-green nuances. Some nicks and contacts. On acrylic base.
Pleasing Dioptase!