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roscoelite

noun
ros·​coe·​lite | \ ˈrä(ˌ)skōˌlīt\
plural -s

Definition of roscoelite

: a mineral approximately K2(Mg,Fe,V,Al)4(Si,Al)8O20(OH)4 consisting of a brownish mica in minute scales that contains vanadium

First Known Use of roscoelite

1876, in the meaning defined above

History and Etymology for roscoelite

Sir Henry E. Roscoe †1915 English chemist + English -lite

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