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Uvarovite

The Garnet Minerals

From Andrew Alden, About.com

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Uvarovite garnet from the Ural Mountains, Russia. (more below)

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Bright-green garnet of the ugrandite groupPhoto courtesy fluor_doublet of flickr.com under Creative Commons license

Uvarovite is one of the calcium garnets of the "ugrandite" group, along with grossular and andradite. Its composition is Ca3Cr2(SiO4)3, and it has a brilliant emerald-green color from the chromium ion.

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