英语词汇“olivine”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	olivine
释义	Word Frequency olivine (ˈɒlɪˌviːn, ˌɒlɪˈviːn) noun 1. an olive-green mineral of the olivine group, found in igneous and metamorphic rocks. The clear-green variety (peridot) is used as a gemstone. Composition: magnesium iron silicate. Formula: (MgFe)2SiO4. Crystal structure: orthorhombic Also called: chrysolite 2. any mineral in the group having the general formula (Mg,Fe,Mn,Ca)2SiO4 Word origin C18: from German, named after its colour
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