'Roscoelite' definitions:

Definition of 'Roscoelite'

From: GCIDE

Roscoelite \Ros"coe*lite\, n. [From an English chemist, H.E. Roscoe + -lite.] (Min.) A green micaceous mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium. [1913 Webster]