Mineralogy Database

Wallisite Mineral Data

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General Wallisite Information

Help on Chemical  Formula: Chemical Formula: PbTl(Cu,Ag)As2S5
Help on Composition: Composition: Molecular Weight = 796.38 gm
   Thallium  25.66 %  Tl
   Copper     5.98 %  Cu
   Silver     3.39 %  Ag
   Arsenic   18.82 %  As
   Lead      26.02 %  Pb
   Sulfur    20.13 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: PbTlCu0.75Ag0.25As2S5
Help on Environment: Environment: Overgrowing other lead sulfosalts.
Help on IMA Status: IMA Status: Approved IMA 1968
Help on Locality: Locality: Lengenbach, Binntal, Valais (Wallis), Switzerland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Wallis, the German name for the Swiss Canton in which the Lengenbach quarry is located.
Help on Name Pronunciation: Name Pronunciation: Wallisite + Pronunciation Say WALLISITE
Help on Synonym: Synonym: ICSD 26804
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