a mineral, bismuth sulfide, Bi 2 S 3 , occurring in lead-gray masses: an ore of bismuth.
a grey mineral consisting of bismuth sulphide in orthorhombic crystalline form. It occurs in veins associated with tin, copper, silver, lead, etc, and is a source of bismuth. Formula: Bi2S3
a white, crystalline, water-insoluble powder, BiOCl, used chiefly in the manufacture of pigments, face powders, and artificial pearls.
of or containing bismuth, especially in the pentavalent state. adjective of or containing bismuth in the pentavalent state
an unstable hydride of bismuth, BiH 3 , analogous to arsine and stibine. any derivative of this compound in which the hydrogen atoms are replaced by one or more organic groups.