Boulangerite
Pb₅Sb₄S₁₁
Sulfides
Hardness 2,75
· Monoclinic
Photo: Wikimedia Commons · CC BY 2.0
[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]
Sulfosalt mineral
Named after poly-
Source: Wikidata
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