英语词汇“pearceite”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

pearceite

释义

pearceite Min.|ˈpɪəsaɪt|
[f. the name of Richard Pearce (1837–1927), British-born metallurgist and chemist + -ite¹.]
A black, lustrous, brittle sulphide of silver and arsenic, Ag₁₆As₈S₁₁, that occurs as tabular crystals and usu. contains copper in place of some of the silver.
1896S. L. Penfield in Amer. Jrnl. Sci. CLII. 18 The author proposes that hereafter the name polybasite shall be restricted to the antimony compound..and to make of the corresponding arsenic compound..a distinct species. For the arsenical mineral he takes pleasure in proposing the name pearceite as a compliment to his friend, Dr. Richard Pearce, of Denver.1942Econ. Geol. XXXVII. 491 Pearceite, recognizable only in polished section, is almost invariably associated with pyrargyrite.1963Amer. Mineralogist XLVIII. 567 The traditional polybasite and pearceite actually are members of two separate solid solution series in which Sb and As substitute mutually.1968I. Kostov Mineral. 173 The crystals of pearceite, polybasite, and xanthoconite are pseudohexagonal platy {ob}001{cb}.

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