Boulangerite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [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]