fluorspar
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flu·or·spar
(flo͞o′ər-spär′, flo͝or′spär′)n.
See fluorite.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
fluorspar
(ˈflʊəˌspɑː) orfluor
n
(Minerals) a white or colourless mineral sometimes fluorescent and often tinted by impurities, found in veins and as deposits from hot gases. It is used in the manufacture of glass, enamel, and jewellery, and is the chief ore of fluorine. Composition: calcium fluoride. Formula: CaF2. Crystal structure: cubic. Also: fluorite (US and Canadian)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
fluo•rite
(ˈflʊər aɪt, ˈflɔr-, ˈfloʊr-)n.
a mineral, calcium fluoride, CaF2, occurring in crystals and in masses: the chief source of fluorine. Also called fluor , fluorspar.
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| Noun | 1. | fluorspar - a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine atomic number 20, Ca, calcium - a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals atomic number 9, fluorine, F - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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