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wollastonite

[woo l-uh-stuh-nahyt] /ˈwʊl ə stəˌnaɪt/
noun
1.
a mineral, calcium silicate, CaSiO 3 , occurring usually in fibrous white masses.
Origin
1815-1825
1815-25; named after W. H. Wollaston; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for wollastonite

wollastonite

/ˈwʊləstəˌnaɪt/
noun
1.
a white or grey mineral consisting of calcium silicate in triclinic crystalline form: occurs in metamorphosed limestones. Formula: CaSiO3
Word Origin
C19: named after W. H. Wollaston (1766–1828), English physicist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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wollastonite in Science
wollastonite
  (wl'ə-stə-nīt')   
A white to gray triclinic or monoclinic mineral found in metamorphic rocks and used in ceramics, paints, plastics, and cements. Chemical formula: CaSiO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for wollastonite

white, glassy silicate mineral that commonly occurs as masses or tabular crystals with other calcium-containing silicates (e.g., diopside, tremolite, garnet, and epidote) in metamorphosed limestones. Deposits are found in Ciclova Romina, Rom.; Monte Somma, Italy; and Pargas, Fin. Occurrences in the United States include Utah; Isle Royale, Mich.; Riverside, Calif.; and Essex county, N.Y., where it is mined. For detailed physical properties, see silicate mineral (table)

Learn more about wollastonite with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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