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Raslakite Mineral Data
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General Raslakite Information
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 Chemical Formula: |
Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH) |
| Composition: |
Molecular Weight = 2,774.01 gm |
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Sodium 15.03 % Na 20.25 % Na2O |
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Calcium 4.48 % Ca 6.27 % CaO |
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Zirconium 2.47 % Zr 3.33 % ZrO2 |
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Niobium 0.84 % Nb 1.20 % Nb2O5 |
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Iron 6.04 % Fe 7.77 % FeO |
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Silicon 26.07 % Si 55.77 % SiO2 |
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Hydrogen 0.15 % H 1.30 % H2O |
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Chlorine 0.96 % Cl 0.96 % Cl |
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- %
Cl -0.22 % -O=Cl2 |
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Oxygen 43.98 % O |
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______ ______ |
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100.00 % 96.63 % = TOTAL OXIDE |
| Empirical Formula: |
Na15.88Ca3.1Fe2+3Na2.25Zr0.75Si0.75Nb0.25Si25O73(OH)2.25(H2O)0.75Cl0.75(OH)0.25 |
| Environment: |
Found in perialkaline pegmatites. Eudialyte group; structure determined |
| IMA Status: |
Approved IMA 2003 (Dana # Added) |
| Locality: |
Mount Karnasurt, Lovozwro alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the Raslak cirques near Mount Kedykverpakhk. |
| Synonym: |
IMA2002-067 |
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