'Lazulite' definitions:

Definition of 'Lazulite'

From: GCIDE

Lazulite \Laz"u*lite\, n. [From lazuli : cf. F. lazulite, G. lazulith.] (Min.) A mineral of a light indigo-blue color, occurring in small masses, or in monoclinic crystals; blue spar. It is a hydrous phosphate of alumina and magnesia. [1913 Webster]