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disthene
or cyanite or disthene
Silicate mineral, one of several phases in the aluminum silicate (Al2SiO5) system. Its colour ranges from gray-green to black or blue, with blue and blue-gray being most common. It occurs in Switzerland, Italy, the Ural Mountains, and New England (U.S.). Kyanite is a raw material in the manufacture of spark plugs. A clear, deep-blue variety is sometimes cut as a gemstone.
Learn more about kyanite with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
See Kyanite
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This article is licensed under the GNU Free Documentation License.
Last updated on Thursday September 15, 2005 at 09:14:30 PDT (GMT -0700)
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This article is licensed under the GNU Free Documentation License.
Last updated on Thursday September 15, 2005 at 09:14:30 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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