单词 | augite |
释义 | Word Frequency augite(ˈɔːɡaɪt) noun a black or greenish-black mineral of the pyroxene group, found in igneous rocks. Composition: calcium magnesium iron aluminium silicate. General formula: (Ca,Mg,Fe,Al)(Si,Al)2O6. Crystal structure: monoclinic Derived forms augitic (ɔːˈɡɪtɪk) adjective Word origin C19: from Latin augītēs, from Greek, from augē brightness |
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