单词 | allochroite |
释义 | allochroiten. 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). < n.1801 |
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