Uvarovite

Uvarovite

Description

A rare, bright green garnet composed of a calcium chromium silicate. Uvarovite was discovered in 1832 and named after Count Sergei Uvarov, a Russian mineral collector. Gemstone quality uvarovite is mined in the Ural Mountains, Norway, Finland, Poland (Silesia), Spain, South Africa, Canada, (Quebec), and in the United States (California, Pennsylvania).

Synonyms and Related Terms

garnet; uvarovita (Esp.); uvarovite (Port.); Uvarovit (Deut.); uvaroviet (Ned.)

Raman

Other Properties

Fracture = conchoidal. Luster = vitreous to resinous. Streak = colorless to white

Composition	Ca3Cr2(SiO4)3
Mohs Hardness	6.5 - 7.5
Density	3.9
Refractive Index	1.86

Additional Information

Mineralogy Database: Uvarovite

Additional Images

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  Uvarovite

Authority

• G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 354

• Encyclopedia Britannica, http://www.britannica.com Comment: "uvarovite" Encyclopdia Britannica Premium Service. [Accessed 20 Sept. 2005].

• C.W.Chesterman, K.E.Lowe, C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979

• Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Uvarovite (Accessed Sept. 20, 2005)

• Random House, Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997

• The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998