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 simply fluor.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A widely occurring mineral (calcium fluoride), of various colours, used as a flux in steelmaking, and in the manufacture of glass, enamels and hydrofluoric 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

Sorry, no etymologies found.

Examples

  • Fluorspar is the trade name for the mineral fluorite, which is composed of calcium fluoride.

    The Economic Aspect of Geology

  • 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.

    The Economic Aspect of Geology

  • Crystals of calcium fluoride (CaF2), also known as fluorite and fluorspar, are used to make lenses to focus infrared light.

    CreationWiki - Recent changes [en]

  • Elder Son's Sweet Fiance, wears the purple fluorite, which is very pretty.

    The Anchoress

  • Directing my awareness onto the fluorite resting on the pentacle, my first few questions would be easy, to set the tone.

    Arcane Circle

  • 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

  • I passed Johnny a fluorite stone and proceeded to cast a circle around us.

    Arcane Circle

  • 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

  • The fluorite tumbled to the left, rolled toward me, spun on blank slate and rolled toward Johnny.

    Arcane Circle

  • 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

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