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单词 fluorite
释义

fluoriten.

Brit. /ˈflʊərʌɪt/, /ˈflɔːrʌɪt/, U.S. /ˈflʊˌraɪt/, /ˈflɔˌraɪt/
Origin: Formed within English, by derivation; modelled on an Italian lexical item. Etymons: fluor n.1, -ite suffix1.
Etymology: < fluor n.1 + -ite suffix1, after Italian fluorite ( C. A. Napione Elementi di mineralogia (1797) I. ii. 373). Compare French fluorite (1808 or earlier; < Italian).
Mineralogy.
A mineral consisting of calcium fluoride, typically occurring as cubic or octahedral crystals, colourless when pure but often coloured by impurities (cf. Blue John n. 2). Cf. fluorspar n.Chemical formula: CaF2. Crystal system: cubic.
ΘΚΠ
the world > the earth > minerals > types of mineral > halides > [noun] > fluorite group > calcium fluoride
fluorspar?1770
Derbyshire spar1772
fluor1772
tiger-stone1829
fluorite1844
spodiosite1887
1814 T. Allan Mineral. Nomencl. (at cited word) Fluorite Nap[ione].]
1844 J. Donovan Rome Anc. & Mod. II. 109 The zoccle of the altar and two lateral compartments are ancient fluorite, of the rarest quality.
1887 J. D. Dana Man. Mineral. & Petrogr. 228 Massive fluorite receives a high polish.
1929 G. P. Merrill Minerals from Earth & Sky ii. iii. 181 In fluorite..the dispersion is very slight and the separation not distinct.
1954 J. F. Kirkaldy Gen. Princ. Geol. xii. 169 Greisening..produces a rock composed essentially of white mica and quartz and often containing fluorine-bearing minerals, such as fluorite and topaz.
2001 Tropical Fish Hobbyist Apr. 148/1 20 percent potting soil mix, 20 percent fluorite.
This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).
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n.1844
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