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[dahy-kroh-ahyt] /ˈdaɪ kroʊˌaɪt/
noun, Mineralogy
1800-10; < French < Greek díchro(os) (see dichroic) + French -ite -ite1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for dichroite


another name for cordierite
Word Origin
C19: from Greek dikhroos two-coloured + -ite1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for dichroite


blue silicate mineral that occurs as crystals or grains in igneous rocks. It typically occurs in thermally altered clay-rich sediments surrounding igneous intrusions and in schists and paragneisses. Precambrian deposits of the Laramie Range, Wyo., U.S., contain more than 500,000 tons of cordierite. Cordierite is sometimes called dichroite because of its marked pleochroism (different coloured light is transmitted in different directions). For chemical formula and detailed physical properties, see silicate mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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