Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A mineral, essentially CaF2, that is often fluorescent in ultraviolet light and occurs in light green, blue, yellow, brown, and colorless forms.
from The Century Dictionary.
- noun Same as
fluor-spar .
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) Calcium fluoride (CaF2), a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called
fluor spar , or simplyfluor .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A widely occurring
mineral (calcium fluoride), of variouscolours , used as aflux insteelmaking , and in themanufacture ofglass ,enamels andhydrofluoric acid .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
Etymologies
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Examples
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Fluorspar is the trade name for the mineral fluorite, which is composed of calcium fluoride.
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In the western United States many metalliferous deposits carry large amounts of fluorite, which is treated as a gangue or waste mineral, but which could be profitably extracted if there were local markets.
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Crystals of calcium fluoride (CaF2), also known as fluorite and fluorspar, are used to make lenses to focus infrared light.
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Elder Son's Sweet Fiance, wears the purple fluorite, which is very pretty.
The Anchoress 2008
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Directing my awareness onto the fluorite resting on the pentacle, my first few questions would be easy, to set the tone.
Arcane Circle Linda Robertson 2011
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When the fluorite rolled back to Ansuz, then tumbled across the slate as if it were running away and stopped abruptly on Nauthiz, however, my confidence returned; there was a purpose in this reading.
Arcane Circle Linda Robertson 2011
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I passed Johnny a fluorite stone and proceeded to cast a circle around us.
Arcane Circle Linda Robertson 2011
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But when the little fluorite spun halfway around, I knew this was a sign to reverse the rune and change the meaning to trickery and lies.
Arcane Circle Linda Robertson 2011
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The fluorite tumbled to the left, rolled toward me, spun on blank slate and rolled toward Johnny.
Arcane Circle Linda Robertson 2011
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But when the little fluorite spun halfway around, I knew this was a sign to reverse the rune and change the meaning to trickery and lies.
Arcane Circle Linda Robertson 2011
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