英语词汇“novákite”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	novákite
释义	novákite Min.\|nəʊˈvɑːkaɪt\| Also novakite. [ad. G. novákit (Johan & Hak 1959, in Chem. der Erde XX. 49), f. the name of JiříNovák, 20th-cent. Czechoslovakian mineralogist: see -ite¹.] A tetragonal arsenide of copper, Cu₄As₃, found at Černy Důl, Czechoslovakia, which is steel-grey on fresh fracture but becomes almost black on exposure to air. 1959Amer. Mineralogist XLIV. 1321 From the powder pattern, novakite is tetragonal..and..pseudocubic.1961Mineral. Abstr. XV. 292/2 Novakite occurs (with chalcocite and löllingite) as impregnations in carbonate rocks in Cu-Co-As ores.1970Amer. Mineralogist LV. 1084 (caption) Polished surface of kutinaite..intergrown with novákite..and calcite.
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