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Polyphite-VIII Mineral Data
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General Polyphite-VIII Information
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 Chemical Formula: |
Na17Ca3Mg(Ti,Mn)4[Si2O7]2(PO4)6O2F6 |
| Composition: |
Molecular Weight = 1,786.09 gm |
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Sodium 21.88 % Na 29.50 % Na2O |
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Calcium 6.73 % Ca 9.42 % CaO |
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Magnesium 1.36 % Mg 2.26 % MgO |
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Titanium 8.04 % Ti 13.42 % TiO2 |
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Manganese 3.08 % Mn 4.42 % Mn2O3 |
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Silicon 6.29 % Si 13.46 % SiO2 |
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Phosphorus 10.40 % P 23.84 % P2O5 |
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Oxygen 35.83 % O |
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Fluorine 6.38 % F 6.38 % F |
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- %
F -2.69 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na17Ca3MgTi3Mn3+(Si2O7)2(PO4)6O2F6 |
| Environment: |
In ultra-agpaitic pegmatites in a differentiated alkaline massif. |
| IMA Status: |
Approved IMA 1992 |
| Locality: |
Lovozero alkaline complex, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Greek for "many" and PHosphorus for the multiple phosphate anions in the formula. |
| Name Pronunciation: |
Polyphite-VIII + Pronunciation  |
| Synonym: |
IMA1990-025 |
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