biotite

English dictionary entry

Meanings

noun
  1. A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron.

Pronunciation

/ˈbaɪəˌtaɪt/ LL-Q1860 (eng)-Vealhurl-biotite.wav

Word forms

biotite biotites

Etymology

From Biot + -ite, named by J.F.L. Hausmann in 1847 in honour of the French physicist Jean-Baptiste Biot, who, in 1816, researched the optical properties of mica, discovering many unique properties.

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