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Magnesioferrikatophorite Mineral Data
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General Magnesioferrikatophorite Information
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 Chemical Formula: |
Na2Ca(Mg,Fe++)4Fe+++Si7AlO22(OH)2 |
| Composition: |
Molecular Weight = 824.40 gm |
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Sodium 5.58 % Na 7.52 % Na2O |
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Calcium 4.86 % Ca 6.80 % CaO |
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Magnesium 8.84 % Mg 14.67 % MgO |
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Aluminum 3.27 % Al 6.18 % Al2O3 |
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Iron 6.77 % Fe 8.71 % FeO |
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Silicon 23.85 % Si 51.02 % SiO2 |
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Hydrogen 0.24 % H 2.19 % H2O |
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Oxygen 46.58 % O |
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______ ______ |
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100.00 % 97.09 % = TOTAL OXIDE |
| Empirical Formula: |
Na2CaMg3Fe2+Si7AlO22(OH)2 |
| Environment: |
Found in basic alkaline igneous rocks. |
| IMA Status: |
Approved IMA 1997 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named for its composition and from the Greek for "carrying down", in allusion to its volcanic origin. |
| Synonym: |
Catophorite |
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