Tags: Chemical Substance, Mineral.

Boulangerite is a sulfosalt mineral lead antimony sulfide formula Pb5Sb4S11. It was named in 1837 in honor of French mining engineer Charles Boulanger (1810–1849). It forms metallic grey monoclinic crystals. Sometimes the crystals form a fine feathery mass which has been called plumosite. Boulangerite is used as a lead ore.

Boulangerite-uri-41a.jpg

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