fluorapatiten.

Brit.

/flʊəˈrapətʌɪt/,

/flɔːˈrapətʌɪt/, U.S.

/flʊˈræpəˌtaɪt/,

/flɔˈræpəˌtaɪt/

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: fluoro- comb. form, apatite n.

Etymology: < fluoro- comb. form + apatite n., after German Fluorapatit (G. Rose 1827, in Ann. der Physik 85 205).

Mineralogy.

A mineral of the apatite group in which fluorine predominates over chlorine and hydroxyl, and which occurs widely as an accessory mineral in igneous and metamorphic rocks and is the chief component of phosphorites. Cf. chlorapatite n. at chlor- comb. form² 3, hydroxyapatite n.Fluorapatite is a phosphate and fluoride of calcium, ideally Ca₅(PO₄)₃F. Crystal system: hexagonal.

ΘΚΠ

the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphate of lime or apatite > varieties

spargelstone1804

asparagus stone1816

francolite1843

fluorapatite1849

staffelite1868

collophanite1892

fermorite1910

steadite1911

hydroxyapatite1912

wilkeite1914

collophane1917

hydroxylapatite1927

1849 H. Watts tr. L. Gmelin Hand-bk. Chem. II. xi. 359 Fluorine... Found..in small quantities in fluor-apatite, wagnerite, amblygonite, [etc.].

1890 T. E. Thorpe Dict. Appl. Chem. I. 188/2 The chlorine..may be altogether absent, the mineral then becoming a Fluorapatite or Francolite.

1927 W. H. Waggaman Phosphoric Acid, Phosphates, & Phosphatic Fertilizers i. 47 The ratio of lime to phosphoric acid in the purest samples of phosphorite approaches that in fluorapatite.

1961 R. Moore Man, Time, & Fossils (ed. 2) xviii. 376 One by one, the submicroscopic units of the hydroxyapatite that make up the teeth are converted into fluorapatite.

2002 Jrnl. Petrol. 43 1818/2 Apatite microphenocrysts and inclusions in titanomagnetite are fluorapatites.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	fluorapatite
释义	fluorapatiten. Brit. /flʊəˈrapətʌɪt/, /flɔːˈrapətʌɪt/, U.S. /flʊˈræpəˌtaɪt/, /flɔˈræpəˌtaɪt/ Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: fluoro- comb. form, apatite n. Etymology: < fluoro- comb. form + apatite n., after German Fluorapatit (G. Rose 1827, in Ann. der Physik 85 205). Mineralogy. A mineral of the apatite group in which fluorine predominates over chlorine and hydroxyl, and which occurs widely as an accessory mineral in igneous and metamorphic rocks and is the chief component of phosphorites. Cf. chlorapatite n. at chlor- comb. form² 3, hydroxyapatite n.Fluorapatite is a phosphate and fluoride of calcium, ideally Ca₅(PO₄)₃F. Crystal system: hexagonal. ΘΚΠ the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphate of lime or apatite > varieties spargelstone1804 asparagus stone1816 francolite1843 fluorapatite1849 staffelite1868 collophanite1892 fermorite1910 steadite1911 hydroxyapatite1912 wilkeite1914 collophane1917 hydroxylapatite1927 1849 H. Watts tr. L. Gmelin Hand-bk. Chem. II. xi. 359 Fluorine... Found..in small quantities in fluor-apatite, wagnerite, amblygonite, [etc.]. 1890 T. E. Thorpe Dict. Appl. Chem. I. 188/2 The chlorine..may be altogether absent, the mineral then becoming a Fluorapatite or Francolite. 1927 W. H. Waggaman Phosphoric Acid, Phosphates, & Phosphatic Fertilizers i. 47 The ratio of lime to phosphoric acid in the purest samples of phosphorite approaches that in fluorapatite. 1961 R. Moore Man, Time, & Fossils (ed. 2) xviii. 376 One by one, the submicroscopic units of the hydroxyapatite that make up the teeth are converted into fluorapatite. 2002 Jrnl. Petrol. 43 1818/2 Apatite microphenocrysts and inclusions in titanomagnetite are fluorapatites. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1849
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