Excellent quality crystal of gemmy Londonite from the co-type locality - Antsongombato gem mine, Vakinankaratra, Madagaskar. Londonite is very rare cesium-dominant analogue of Rhodizite. The crystal of 17mm has pleasing yellow color and sharp rhombohedral habit combined with glassy luster. It is vitreous and gemmy. In very good condition – some minor nicks and back side contact. On acrylic base.

Superb!