Boulangerite
Pb₅Sb₄S₁₁
Sulfides
Hardness 2,75
· Monoclinic
(Ag,Cu)₆Pb₄₃-₂ₓSb₄₄₊₂ₓS₁₁₂Oₓ (x~0.5)
Sulfosalt mineral
Named after Alain Meerschaut
Source: Wikidata
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