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Hephaistosite Mineral Data
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General Hephaistosite Information
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 Chemical Formula: |
TlPb2Cl5 |
| Composition: |
Molecular Weight = 793.05 gm |
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Thallium 24.23 % Tl 27.07 % Tl2O3 |
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Lead 52.51 % Pb 54.54 % Pb2O |
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Bromine 1.41 % Br 1.41 % Br |
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- %
Br -0.14 % -O=Br2 |
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Chlorine 21.68 % Cl 21.68 % Cl |
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- %
Cl -4.89 % -O=Cl2 |
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Fluorine 0.17 % F 0.17 % F |
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- %
F -0.07 % -O=F2 |
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______ ______ |
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100.00 % 99.77 % = TOTAL OXIDE |
| Empirical Formula: |
Tl0.94Pb2.01Cl4.85Br0.14F0.07 |
| Environment: |
Found in a high-temperature fumarole (~400°C) at the rim of La Fossa crater. Isostructural with challacolloite. |
| IMA Status: |
Approved IMA 2006 (Dana # Added) |
| Locality: |
La Fossa crater, Vulcano, Aeolian Islands, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the Greek god of fire, Hephaistos (Hephaestus), whose workshops were alleged located at the locality (Vulcano). |
| Synonym: |
IMA2006-043 |
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