tautoliten.

Brit.

/ˈtɔːtəlʌɪt/, U.S.

/ˈtɔdəˌlaɪt/,

/ˈtɑdəˌlaɪt/

Origin: A borrowing from German. Etymon: German Tautolith.

Etymology: < German Tautolith (A. Breithaupt 1827, in Jrnl. f. Chemie u. Physik 50 321), shortened < Tautometrolith (1827 in the same source; < Byzantine Greek ταὐτόμετρος of the same measure, referring to a supposed axial relation ( < ancient Greek ταὐτο- tauto- comb. form + -μετρος : see -metry comb. form) + German -lith -lite comb. form¹), with remodelling of the ending after -lite comb. form¹. Compare French tautolite (1829 or earlier; < German).

Mineralogy. Now disused.

= allanite n.

ΘΚΠ

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

allanite1810

orthite1817

bucklandite1824

tautolite1828

xanthorthite1868

pumpellyite1925

1828 Philos. Mag. 2nd Ser. 3 398 The tautolite seems to be related to the chrysolite, as the ceylanite to the spinelle.

1868 J. D. Dana Syst. Mineral. (ed. 5) 286 Bucklandite is anhydrous allanite in small black crystals... Tautolite..is probably the same species.

1915 S. I. Levy Rare Earths ii. 42 The Tautolite of Kokscharow (1847), the Bodenite of Breithaupt (1844)..and the Vasite of Bahr (1863) have all been shown to be varieties of the same bewildering mineral.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

单词	tautolite
释义	tautoliten. Brit. /ˈtɔːtəlʌɪt/, U.S. /ˈtɔdəˌlaɪt/, /ˈtɑdəˌlaɪt/ Origin: A borrowing from German. Etymon: German Tautolith. Etymology: < German Tautolith (A. Breithaupt 1827, in Jrnl. f. Chemie u. Physik 50 321), shortened < Tautometrolith (1827 in the same source; < Byzantine Greek ταὐτόμετρος of the same measure, referring to a supposed axial relation ( < ancient Greek ταὐτο- tauto- comb. form + -μετρος : see -metry comb. form) + German -lith -lite comb. form¹), with remodelling of the ending after -lite comb. form¹. Compare French tautolite (1829 or earlier; < German). Mineralogy. Now disused. = allanite n. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > allanite allanite1810 orthite1817 bucklandite1824 tautolite1828 xanthorthite1868 pumpellyite1925 1828 Philos. Mag. 2nd Ser. 3 398 The tautolite seems to be related to the chrysolite, as the ceylanite to the spinelle. 1868 J. D. Dana Syst. Mineral. (ed. 5) 286 Bucklandite is anhydrous allanite in small black crystals... Tautolite..is probably the same species. 1915 S. I. Levy Rare Earths ii. 42 The Tautolite of Kokscharow (1847), the Bodenite of Breithaupt (1844)..and the Vasite of Bahr (1863) have all been shown to be varieties of the same bewildering mineral. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < n.1828
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