orthiten.

Brit.

/ˈɔːθʌɪt/, U.S.

/ˈɔrˌθaɪt/

Origin: A borrowing from Swedish. Etymon: Swedish orthit.

Etymology: < Swedish orthit (apparently coined by Berzelius in 1816, but not published until 1818, in Afhandlingar i fysik, kemi och mineralogi 5 32) < ancient Greek ὀρθός straight (see ortho- comb. form) + Swedish -it -ite suffix¹.

Mineralogy.

A silicate of cerium, iron, aluminium, and other metals, occurring as elongated crystals and now regarded as a variety of allanite.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > allanite

allanite1810

orthite1817

bucklandite1824

tautolite1828

xanthorthite1868

pumpellyite1925

1817 Ann. Philos. 9 160 Orthite, so named because it always forms straight radii.

1844 J. D. Dana Syst. Mineral. (ed. 2) vi. 429 Allanite... This species includes three varieties:..Orthite. Occurs in acicular crystals.

1900 Science 17 Aug. 273/1 He also concludes from a very thorough spectroscopic examination of the same orthite, that there is a new element present which has not yet been isolated.

1979 Philos. Trans. (Royal Soc.) A. 291 94 At Mary Kathleen, uraninite occurs as blebs in orthite (allanite) and in apatite.

Derivatives

orˈthitic adj. rare of the nature of orthite.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > epidote group > [adjective] > allanite

orthitic1843

1843 W. Humble Dict. Geol. Allanite, an orthitic melane-ore.

1995 Geochimica et Cosmochimica Acta 59 909 Anorthitic.]

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orthite
释义	orthiten. Brit. /ˈɔːθʌɪt/, U.S. /ˈɔrˌθaɪt/ Origin: A borrowing from Swedish. Etymon: Swedish orthit. Etymology: < Swedish orthit (apparently coined by Berzelius in 1816, but not published until 1818, in Afhandlingar i fysik, kemi och mineralogi 5 32) < ancient Greek ὀρθός straight (see ortho- comb. form) + Swedish -it -ite suffix¹. Mineralogy. A silicate of cerium, iron, aluminium, and other metals, occurring as elongated crystals and now regarded as a variety of allanite. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > allanite allanite1810 orthite1817 bucklandite1824 tautolite1828 xanthorthite1868 pumpellyite1925 1817 Ann. Philos. 9 160 Orthite, so named because it always forms straight radii. 1844 J. D. Dana Syst. Mineral. (ed. 2) vi. 429 Allanite... This species includes three varieties:..Orthite. Occurs in acicular crystals. 1900 Science 17 Aug. 273/1 He also concludes from a very thorough spectroscopic examination of the same orthite, that there is a new element present which has not yet been isolated. 1979 Philos. Trans. (Royal Soc.) A. 291 94 At Mary Kathleen, uraninite occurs as blebs in orthite (allanite) and in apatite. Derivatives orˈthitic adj. rare of the nature of orthite. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > epidote group > [adjective] > allanite orthitic1843 1843 W. Humble Dict. Geol. Allanite, an orthitic melane-ore. 1995 Geochimica et Cosmochimica Acta 59 909 Anorthitic.] This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1817
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