英语词汇“melanotekite”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	melanotekite
释义	melanotekite Min.\|ˌmɛlənəʊˈtiːkaɪt\| [ad. Sw. melanotekit (G. Lindström 1880, in Öfversigt af K. Vetenskaps-Akad. Förhandl. XXXVII. vi. 56), f. Gr. µελανο- melano- + τήκ-ειν to melt, dissolve: see -ite¹.] A black to dark grey silicate of lead and iron (see quot. 1962). 1882Jrnl. Chem. Soc. XLII. 291 Melanotekite, so called from its behaviour before the blowpipe (fusion to a black bead),..is a black to blackish-grey mineral, often with a bluish tinge.1962Arkiv för Mineral. och Geol. III. 143 Kentrolite and melanotekite are isostructural. They form a series with the end-members Pb₂Mn₂Si₂O₉ and Pb₂Fe₂Si₂O₉... Kentrolite can be defined as those members of this series which contain more than 50 mol per cent Pb₂Mn₂Si₂O₉, and the others are called melanotekite.1968Amer. Mineralogist LIII. 1278 The synthesis of melanotekite (Pb₂Fe₂Si₂O₉), kentrolite (Pb₂Mn₂Si₂O₉) and of intermediate members of this complete solid solution series has been reported elsewhere (Ito and Frondel, 1967). Using similar procedures, we have synthesized the Sc, Ga and Cr analogues of these compounds.
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