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

单词	bertrandite
释义	bertrandite Min.\|ˈbɜːtrəndaɪt\| [a. F. Bertrandite (A. Damour 1883, in Bull. Soc. Min. VI. 254), after E. Bertrand, who first described it: see -ite¹.] Hydrous silicate of beryllium. 1887Dana Man. Min. & Petrog. (ed. 4) 275 Bertrandite is related to phenacite in composition.1911Encycl. Brit. VII. 578/2 Examples of other substances belonging to this [sc. pyramidal] class are..Bertrandite (H₂Be₄Si₂O₉).1914Parl. Papers LXXI. 414 Twinned crystals of felspar from Portugal and of bertrandite from Cornwall have been measured and described.
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