英语词汇“johannsenite”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

johannsenite

释义

johannsenite Min.|dʒəʊˈhænsənaɪt|
[f. the name of Albert Johannsen (1871–1962), American geologist: see -ite¹.]
A brown, greyish, or greenish silicate of calcium and manganese, CaMnSi₂O₆, which often occurs with partial substitution of ferrous iron for manganese.
1932Amer. Mineralogist XVII. 575 The Mineralogical Society of America... List of papers to be presented Wednesday, December 28, 1932... W. T. Schaller.—Johannsenite, a new manganese pyroxene.1963W. A. Deer et al. Rock-Forming Min. II. 75 Johannsenite, the manganese analogue of diopside and hedenbergite, occurs in metasomatized limestones, and is found less frequently as a vein mineral.

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