Corundum (Var: Ruby), Zoisite
Small Cabinet, 5.8 x 5.4 x 3.0 cm
Longido, Mt Kilimanjaro, Kilimanjaro Region, Tanzania

You can clearly see the sharp hexagonal shape of the large maroon-colored ruby (corundum) crystal here, still encased in the surrounding green zoisite in which it crystallized. The ruby crystal measures 4.5 cm. From the collection of noted California collector Charles Hansen.