Tanzanite, one of December's recognized birthstone, is noted for its trichoism: when a gem exemplifies three unique colors when observed at three different angles. This stunning birthstone displays deep royal blues, rich purples, and strong burgundies.
Tanzanite was first discovered in 1967 in the foothills of Mount Kilimanjaro, in the East African country of Tanzania. It occurs in nature as reddish brown and will be heated to bring out tanzanite's signature trichoism. In 2002, it was named one of December's blue birthstones by the American Gem Trade Association.
AT: 12/01/2016 11:56:07 AM