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Pumpellyite-(Al) Mineral Data
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General Pumpellyite-(Al) Information
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 Chemical Formula: |
Ca2(Al,Fe++,Mg)Al2(SiO4)(Si2O7)(OH,O)2•H2O |
| Composition: |
Molecular Weight = 481.95 gm |
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Sodium 0.05 % Na 0.06 % Na2O |
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Calcium 16.55 % Ca 23.15 % CaO |
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Magnesium 1.21 % Mg 2.01 % MgO |
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Manganese 0.11 % Mn 0.15 % MnO |
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Aluminum 13.55 % Al 25.60 % Al2O3 |
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Iron 3.82 % Fe 4.92 % FeO |
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Silicon 17.48 % Si 37.40 % SiO2 |
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Hydrogen 0.75 % H 6.69 % H2O |
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Oxygen 46.48 % O |
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______ ______ |
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100.00 % 99.98 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.99Na0.01Al0.42Fe2+0.33Mg0.24Mn2+0.01Al2(SiO4)(Si2O7)(OH)2.42�0.58(H2O) |
| Environment: |
Found in late-formed veins associated with calcite, K-feldspar, and chlorite in aggregates. Pumpellyite group. |
| IMA Status: |
Approved IMA 2005 - (Dana # Added) |
| Locality: |
Carri�re de la Fl�che quarry, near Bertrix, Ardennes, Belgium. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Al analog of pumpellyite. |
| Name Pronunciation: |
Pumpellyite-(Al) + Pronunciation  |
| Synonym: |
IMA2005-016 |
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