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Twinnite Mineral Data
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General Twinnite Information
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 Chemical Formula: |
Pb(Sb,As)2S4 |
| Composition: |
Molecular Weight = 574.28 gm |
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Antimony 40.28 % Sb |
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Arsenic 1.30 % As |
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Lead 36.08 % Pb |
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Sulfur 22.33 % S |
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100.00 % |
| Empirical Formula: |
PbSb1.9As0.1S4 |
| Environment: |
In marble with other lead sulfantimonides. |
| IMA Status: |
Valid Species (Pre-IMA) 1957 |
| Locality: |
Madoc, Ontario, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Robert M. Thompson (1918-1967), Canadian Mineralogist: Thompson means "son of Thomas," which is Aramaic for "twin." |
| Name Pronunciation: |
Twinnite  |
| Synonym: |
IMA1966-017 |
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