ZOISITE, variety Tanzanite
Ca₂Al₃(Si₂O₇)(SiO₄)(O,OH)₂
Merelani Hills, Arusha, Tanzania

Tanzanite, the purple to blue gem varirty of zoisite, was only first discovered in 1967. This fine, well-formed, gem-quality crystal is from the early years of production.

Size: 4.2 cm tall

Acquired: 1974 donation from Mr. and Mrs. E. Hadley Stuart, Jr.

Disposition: On display in the Gem Crystal exhibit.

Catalog Number: 16497