单词 | vesuvianite |
释义 | Word Frequency vesuvianite(vɪˈsuːvɪəˌnaɪt) noun a green, brown, or yellow mineral consisting of a hydrated silicate of calcium, magnesium, iron, and aluminium: it occurs as tetragonal crystals in limestones and is used as a gemstone. Formula: Ca10(Mg,Fe)2Al4 Si9O34(OH)4 Also called: idocrase, vesuvianWord origin C19: first found in the lava of Vesuvius |
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