Madocite

madocite

jamesonite

boulangerite

arsenopyrite

Images

Formula: Pb₁₉(Sb,As)₁₆S₄₃
Sulpharsenite, antimony-bearing mineral
Crystal System: Orthorhombic
Specific gravity: 5.98
Hardness: 3
Streak: Grey-black
Colour: Grey-black
Environments

Metamorphic environments

Localities

At the type locality, the Taylor Pit, Huntingdon Township, Centre Hastings Municipality, Hastings county, Ontario, Canada, madocite occurs in marble. Associated minerals include jamesonite, boulangerite and arsenopyrite (HOM). The depositional sequence, from oldest to youngest, is sulphides, arsenic-rich sulphosalts, and antimony-rich and copper-bearing sulphosalts (CM 9.505-521).

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