büˈlanjəˌrīt noun
( -s )
Etymology: German boulangerit, from C.L. Boulanger died 1849 French mining engineer + German -it -ite
: a bluish gray metallic-looking mineral Pb 5 Sb 4 S 11 consisting of antimony lead sulfide occurring usually in plumose masses (hardness 2.5-3, specific gravity 5.75-6.0)