dufreniten.

Brit.

/d(j)uːˈfrɛnʌɪt/, U.S.

/d(j)uˈfreɪˌnaɪt/

Forms: 1800s dufrénite, 1800s– dufrenite.

Origin: A borrowing from French. Etymon: French dufrénite.

Etymology: < French dufrénite ( A. Brongniart Tableau de la Distribution méthodique des espèces minérales (1833) 20) < dufren- (in the name of Pierre-Armand Dufrénoy : see dufrenoysite n.) + -ite -ite suffix¹.

Mineralogy.

A mineral consisting of a hydrated basic phosphate of iron, typically occurring in dark greenish-brown nodules and fibrous masses.Chemical formula: Fe₅(PO₄)₃(OH)₅·2H₂O. Crystal system: monoclinic.

ΘΚΠ

the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphates of iron

siderite1784

siderites1794

green iron ore1804

scorodite1823

vivianite1823

dufrenite1837

melanchlor1854

neoctese1854

globosite1868

strengite1881

koninckite1885

phosphosiderite1890

tinticite1946

laubmannite1949

1837 R. Allan Phillips's Elem. Introd. Mineral. (ed. 4) 248 The Dufrénite of Brogniart [sic], or phosphate de fer manganesien vert of Beudant, contains phosphoric acid 24.8, protoxide of iron 51.0, water 15.0, peroxide of manganese 9.0.

1864 Chem. News 1 Oct. 158/1 It is remarkable that the ferric hydrate presumed to exist in dufrenite (and delvauxite) should not be altered by a heat of 100° C.

1960 F. H. Pough et al. Field Guide Rocks & Minerals (ed. 3) 213 Most old dufrenite specimens are actually now called frondelite or rockbridgeite.

2006 A. Canarache et al. Elsevier's Dict. Soil Sci. 430/2 Phosphates bound to Al include variscite and taranakite, and those bound to Fe strengite, dufrenite and vivianite.

This entry has been updated (OED Third Edition, June 2016; most recently modified version published online March 2022).

单词	dufrenite
释义	dufreniten. Brit. /d(j)uːˈfrɛnʌɪt/, U.S. /d(j)uˈfreɪˌnaɪt/ Forms: 1800s dufrénite, 1800s– dufrenite. Origin: A borrowing from French. Etymon: French dufrénite. Etymology: < French dufrénite ( A. Brongniart Tableau de la Distribution méthodique des espèces minérales (1833) 20) < dufren- (in the name of Pierre-Armand Dufrénoy : see dufrenoysite n.) + -ite -ite suffix¹. Mineralogy. A mineral consisting of a hydrated basic phosphate of iron, typically occurring in dark greenish-brown nodules and fibrous masses.Chemical formula: Fe₅(PO₄)₃(OH)₅·2H₂O. Crystal system: monoclinic. ΘΚΠ the world > the earth > minerals > types of mineral > phosphates > [noun] > phosphates of iron siderite1784 siderites1794 green iron ore1804 scorodite1823 vivianite1823 dufrenite1837 melanchlor1854 neoctese1854 globosite1868 strengite1881 koninckite1885 phosphosiderite1890 tinticite1946 laubmannite1949 1837 R. Allan Phillips's Elem. Introd. Mineral. (ed. 4) 248 The Dufrénite of Brogniart [sic], or phosphate de fer manganesien vert of Beudant, contains phosphoric acid 24.8, protoxide of iron 51.0, water 15.0, peroxide of manganese 9.0. 1864 Chem. News 1 Oct. 158/1 It is remarkable that the ferric hydrate presumed to exist in dufrenite (and delvauxite) should not be altered by a heat of 100° C. 1960 F. H. Pough et al. Field Guide Rocks & Minerals (ed. 3) 213 Most old dufrenite specimens are actually now called frondelite or rockbridgeite. 2006 A. Canarache et al. Elsevier's Dict. Soil Sci. 430/2 Phosphates bound to Al include variscite and taranakite, and those bound to Fe strengite, dufrenite and vivianite. This entry has been updated (OED Third Edition, June 2016; most recently modified version published online March 2022). < n.1837
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