单词 | dumortierite |
释义 | Word Frequency dumortierite(djuːˈmɔːtɪəˌraɪt) noun a hard fibrous blue or green mineral consisting of hydrated aluminium borosilicate. Formula: Al7O3BO3(SiO4)3 Word origin C19: named after Eugène Dumortier, 19th-century French palaeontologist who discovered it |
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