英语词汇“umangite”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	umangite
释义	umangite Min.\|ˈjuːməŋgaɪt\| [ad. G. umangit (F. Klockmann 1891, in Zeitschr. f. Krist. und Min. XIX. 265), f. the name of Sierra de Umango in Argentina: see -ite¹.] A copper selenide, Cu₃Se₂, found as dark red, violet, or black tetragonal crystals. 1891Jrnl. Chem. Soc. LX. 1435 The author has found three rare minerals of great interest... 2. Umangite.—Associated with eukairite, there occurs a mineral..which proved on analysis to be a variety of copper selenide... The new mineral occurs in finely granular masses.1978Mineral. Abstr. XXIX. 198/2 Umangite (Cu₃Se₂), berzelianite (Cu_2-_xSe), and athabascaite (Cu_5·1Se₄) are found in fracture fillings in a carbonatized mafic intrusive rock from Christopher Island, Baker Lake, North West Territories.
随便看	unbelt unbelted unbemoaned unbend unbendable unbended unbender unbending unbene unbeneficed unbeneficent unbeneficial unbenefitable unbenefited unbenevolence unbenevolent unbenight unbenighted unbenign unbenignant unbenignity unbent unbenumb unbenumbed unbepissed

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