BOULANGERITE
Source: 567
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.
Source: 567
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.