Exceedingly rare cluster of gem Tanzanite crystals! Tanzanite crystals are usually found as single crystals embedded in matrix, and to have a pocket large enough for open growth of a 7.7cm crystal cluster is rare. 6 crystals of gem quality, lavender color, all undamaged except for one small ding on the side of a lesser crystal. Some attached Diopside and Graphite on backside. Spectacular, unique Tanzanite.