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单词 allochroite
释义

allochroiten.

Brit. /əˈlɒkrəʊʌɪt/, U.S. /əˈlɑkroʊˌaɪt/, /æˈlɑkroʊˌaɪt/
Origin: A borrowing from German. Etymon: German Allochroit.
Etymology: < German Allochroit ( B. J. d'Andrada Kurze Angabe der Eigenschaften u. Kennzeichen einiger neuen Fossilien aus Schweden u. Norwegen (1799) 9, the source translated in quot. 1801) < ancient Greek ἀλλόχροος (see allochroous adj.) + German -it -ite suffix1. Compare French allochroïte (1800 in a translation of d'Andrada's German work).
Mineralogy. Now historical and rare.
A kind of garnet now regarded as identical with andradite.
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > garnet > others
allochroite1801
pyrope1804
cinnamon-stone1805
colophonite1808
succinite1816
topazolite1819
hessonite1820
greenlandite1823
polyadelphite1829
vermeil1884
rhodolite1898
hibschite1907
plazolite1920
kimzeyite1958
majorite1970
1801 tr. J. d'Andrada in Jrnl. Nat. Philos., Chem., & Arts Aug. 196 Allochroite possesses a yellow-grey, and, in some instances, a dark straw-yellow colour.
1861 W. Elderhorst Man. Blow-pipe Anal. (ed. 2) 121 Allochroite [lime-iron-garnet]... Gelatinizes imperfectly; fuses readily.
1905 F. W. Rudler Handbk. Coll. Minerals Brit. Islands 101 Common garnet is now generally known as andradite, including the varieties sometimes regarded as allochroite and colophonite.
1978 Trans. Amer. Philos. Soc. 68 92/2 A dozen minerals..were now placed under other species, examples being wernerite as a variety of scapolite, allochroite as a garnet..and sommite as a nepheline.
This entry has been updated (OED Third Edition, September 2012; most recently modified version published online March 2022).
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n.1801
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