Boulangerite
Boulangerit was named after the French mining engineer Ch.L. Boulanger (1810-1849). It is formed on hydrothermal polymetallic veins. It forms stalked to acicular crystals, more often fibrous to plush, fine-grained or solid aggregates. The color is steel gray sometimes with a bluish tinge. More info
Boulangerit was named after the French mining engineer Ch.L. Boulanger (1810-1849). It is formed on hydrothermal polymetallic veins. It forms stalked to acicular crystals, more often fibrous to plush, fine-grained or solid aggregates. The color is steel gray sometimes with a bluish tinge.