| 单词 | biotite |
| 释义 | biotite —biotitic /buy'euh tit"ik/, adj. /buy"euh tuyt'/, n. a very common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks. [1860-65; named after J. B. Biot (1774-1862), French mineralogist and mathematician; see -ITE1] |
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