| 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 originC19: named after Eugène Dumortier, 19th-century French palaeontologist who discovered it | 
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