Sunday, June 17, 2007

Tsavorite a is a valued collectors gemstone due to its rarity and its beauty

Tsavorite garnet was first discovered in Tanzania in 1968, and was named after Tsavo National Park. It is located near the border between Kenya and Tanzania. A member of the garnet group, the species is grossularite and the variety is tsavorite.

Tsavorite is said to be the most valued variety of this species. Although Tsavorite is the name usually associated with the darker green garnets, there is no universally accepted standard that designates which shade of green qualifies a stone as tsavorite.

Although the attractive green color of Tsavorite was initially thought to be associated with the presence of chromium, it is now known that vanadium causes the color and some stones contain no chromium at all.

Tsavorites are relatively hard so they polish well. Like all garnets, they are singly refractive and as a result can be especially brilliant. Suitable in any kind of gemstone jewelry, tsavorites offer excellent value and utility at a price more affordable than emeralds, especially in smaller sizes. Clean stones over 10cts. in size are extremely rare and much more expensive.

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