英语词汇“samarskite”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

samarskite

释义

samarskite Min.|ˈsæmɑːskaɪt|
[ad. G. samarskit (H. Rose 1847, in Ann. d. Physik LXXI. 166), f. the name of Col. M. von Samarski, 19th-cent. Russian mining official: see -ite¹.]
A complex niobate and tantalate of yttrium, uranium, and iron, with small quantities of other metals including lanthanides, which is found as velvet-black or dark brown monoclinic prisms in granite pegmatites.
1849J. Nicol Man. Mineral. 285 Samarskite... Rhombic; isomorphous with columbite..mostly imbedded in flat, somewhat polygonal grains.1947Proc. Indian Acad. Sci. A. XXV. 405 The samples of samarskite were secured from the Kodanda Rama mine in Nellore District.1973T. Moeller in J. C. Bailar et al. Comprehensive Inorg. Chem. IV. xliv. 49 Minerals of lesser importance include..samarskite, an yttrium earth–iron–calcium–uranyl niobate–tantalate, found in North Carolina, the Ural Mountains, and Madagascar.

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