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Plumalsite Mineral Data
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General Plumalsite Information
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 Chemical Formula: |
Pb4Al2(SiO3)7 (?) |
| Composition: |
Molecular Weight = 1,415.35 gm |
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Aluminum 3.81 % Al 7.20 % Al2O3 |
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Silicon 13.89 % Si 29.72 % SiO2 |
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Lead 58.56 % Pb 63.08 % PbO |
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Oxygen 23.74 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Pb4Al2Si7O21 |
| Environment: |
Continental deposits and the upper part of the weathered crust of crystalline rocks. Evidently of supergene origin. |
| IMA Status: |
Not Approved IMA 1968 |
| Locality: |
Ukrainian Shield. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the composition (Pb, Al, Si). |
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