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[kal-sahyt] /ˈkæl saɪt/
one of the commonest minerals, calcium carbonate, CaCO 3 , found in a great variety of crystalline forms: a major constituent of limestone, marble, and chalk; calc-spar.
Origin of calcite
1840-50; calc- + -ite1
Related forms
[kal-sit-ik] /kælˈsɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for calcite


a colourless or white mineral (occasionally tinged with impurities), found in sedimentary and metamorphic rocks, in veins, in limestone, and in stalagmites and stalactites. It is used in the manufacture of cement, plaster, paint, glass, and fertilizer. Composition: calcium carbonate. Formula: CaCO3. Crystal structure: hexagonal (rhombohedral)
Derived Forms
calcitic (kælˈsɪtɪk) adjective
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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Word Origin and History for calcite

crystalling calcium carbonate, 1849, from German Calcit, coined by Austrian mineralogist Wilhelm Karl von Hardinger (1795-1871) from Latin calx (genitive calcis) "lime" (see chalk (n.)) + mineral suffix -ite (2) (German -it).

Online Etymology Dictionary, © 2010 Douglas Harper
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calcite in Science
A usually white, clear, pale-yellow or blue orthorhombic mineral. Calcite occurs in many different forms and is the main component of chalk, limestone, and marble. It is a polymorph of aragonite. Chemical formula: CaCO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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