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 22mm has pleasing yellow color and sharp rhombohedral habit combined with glassy luster. It is vitreous and gemmy. In excellent condition. On acrylic base.

Superb!