'Boulangerite' definitions:

Definition of 'Boulangerite'

From: GCIDE

Boulangerite \Bou*lan"ger*ite\, n. [From Boulanger, a French mineralogist.] (Min.) A mineral of a bluish gray color and metallic luster, usually in plumose masses, also compact. It is a sulphide of antimony and lead. [1913 Webster]