单词 | fluorite |
释义 | fluorite[ floor-ahyt, flawr-, flohr- ] / ˈflʊər aɪt, ˈflɔr-, ˈfloʊr- / nouna common mineral, calcium fluoride, CaF2, occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorene, used also as a flux in metallurgy and for ornament. Also called fluor, fluorspar, fluor spar. Origin of fluoriteFrom Italian, dating back to 1865–70; see origin at fluor-, -ite1 Words nearby fluoritefluoridize, fluorimeter, fluorinate, fluorine, fluorine dating, fluorite, fluoro-, fluorocarbon, fluorochemical, fluorochrome, fluorography Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for fluoriteBritish Dictionary definitions for fluoritefluorite / (ˈflʊəraɪt) / nounUS and Canadian 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: CaF 2 . Crystal structure: cubicAlso called (in Britain and certain other countries): fluorspar, fluor 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 Scientific definitions for fluoritefluorite [ flur′īt′ ] A transparent to translucent mineral occurring in many colors, especially yellow and purple, and usually in cube-shaped crystals with octahedral cleavage. It is found in sedimentary rocks and in ore deposits within igneous rocks. It is often fluorescent in ultraviolet light. Chemical formula: CaF2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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