The pearceite-polybasite group includes:
argentopolybasite:
Ag16Sb2S11
auropolybasite:
[Ag9AuS4][Ag6Sb2S7]
benleonardite:
Ag15Cu(Sb,As)2S7Te4
pearceite:
[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]
polybasite:
[Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]
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