fluorite

[floor-ahyt, flawr-, flohr-]
noun
a common mineral, calcium fluoride, CaF 2 , occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorine, used also as a flux in metallurgy and for ornament.
Also called fluor, fluorspar, fluor spar.


Origin:
1865–70; < Italian; see fluor-, -ite1

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World English Dictionary
fluorite (ˈflʊəraɪt)
 
n
(US), (Canadian) fluorspar, Also called (in Britain and certain other countries): fluor 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

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American Heritage
Science Dictionary
fluorite   (flr'īt')  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The seeming disorder of calcite highlights the geometric precision of fluorite.
Distal barite-fluorite veins consist of variable proportions of barite, fluorite, and manganese oxides.
Fluorite is a bluish-green mineral used in the smelting of iron and in the ceramic and chemical industry.
Images for fluorite
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