单词 | adularia |
释义 | Word Frequency adularia(ˌædjʊˈlɛərɪə) noun a white or colourless glassy variety of orthoclase in the form of prismatic crystals. It occurs in metamorphic rocks and is a minor gemstone. Formula: KAlSi3O8 Word origin C18: via Italian from French adulaire, after Adula, a group of mountains in Switzerland |
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