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biotite
Definitions
[ˈbʌɪətʌɪt], (Noun)
Definitions:
- a black, dark brown, or greenish black micaceous mineral, occurring as a constituent of many igneous and metamorphic rocks
Phrases:
Origin
:
mid 19th century: named after J.-B. Biot (1774–1862), French mineralogist
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definition by Oxford Dictionaries