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Wallisite Mineral Data
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General Wallisite Information
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 Chemical Formula: |
PbTl(Cu,Ag)As2S5 |
| Composition: |
Molecular Weight = 796.38 gm |
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Thallium 25.66 % Tl |
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Copper 5.98 % Cu |
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Silver 3.39 % Ag |
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Arsenic 18.82 % As |
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Lead 26.02 % Pb |
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Sulfur 20.13 % S |
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100.00 % |
| Empirical Formula: |
PbTlCu0.75Ag0.25As2S5 |
| Environment: |
Overgrowing other lead sulfosalts. |
| IMA Status: |
Approved IMA 1968 |
| Locality: |
Lengenbach, Binntal, Valais (Wallis), Switzerland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Wallis, the German name for the Swiss Canton in which the Lengenbach quarry is located. |
| Name Pronunciation: |
Wallisite + Pronunciation  |
| Synonym: |
ICSD 26804 |
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PDF 25-294 |
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