'Petalite' definitions:

Definition of 'Petalite'

From: GCIDE
  • Petalite \Pet"al*ite\, n. [Cf. F. p['e]talite.] (Min.) A rare mineral, occurring crystallized and in cleavable masses, usually white, or nearly so, in color. It is a silicate of aluminum and lithium. [1913 Webster]