Antimonpearceite Mineral Data

General Antimonpearceite Information
Chemical Formula:	[Ag9CuS4] [(Ag,Cu)6(Sb,As)2S7]
Composition:	Molecular Weight = 2,121.41 gm
	Copper 11.98 % Cu
	Silver 61.02 % Ag
	Antimony 8.61 % Sb
	Arsenic 1.77 % As
	Sulfur 16.63 % S
	______
	100.00 %
Empirical Formula:	Ag₁₂Cu₄Sb_1.5As_0.5S₁₁
Environment:	In epithermal precious metal veins.
IMA Status:	Approved IMA 1963
Locality:	In Mexico, from an unspecified locality in Sonora, and from Guanajuato. At Taltal, Chile. From the Clara mine, near Wolfrath, Black Forest, Germany. Link to MinDat.org Location Data.
Name Origin:	For its compositional relationship to pearceite.
Name Pronunciation:	Antimonpearceite + Pronunciation
Synonym:	Polybasite-Tac - Suggested nomenclature from AmMin v92:918