| 单词 | hornblende |
| 释义 | Word Frequency hornblende(ˈhɔːnˌblɛnd) noun a black or greenish-black mineral of the amphibole group, found in igneous and metamorphic rocks. Composition: calcium magnesium iron sodium aluminium aluminosilicate. General formula: (Ca,Na)2.3(Mg,Fe,Al)5 Si6(Si,Al)2O22(OH)2 Derived forms hornblendic (ˌhornˈblendic) adjective Word origin C18: from German Horn horn + blende |
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