N 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 辉铋矿
N（名词） 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 辉铋矿