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Ikranite Mineral Data
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General Ikranite Information
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 Chemical Formula: |
(Na,H3O)15(Ca,Mn,REE)6Fe+++2Zr3([ ],Zr)([ ],Si)Si24O66(O,OH)6Cl•2-3H2O |
| Composition: |
Molecular Weight = 2,760.39 gm |
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Potassium 0.37 % K 0.44 % K2O |
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Sodium 5.93 % Na 7.99 % Na2O |
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Strontium 1.36 % Sr 1.61 % SrO |
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Calcium 4.52 % Ca 6.32 % CaO |
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Lanthanum 0.55 % La 0.65 % La2O3 |
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Cerium 1.32 % Ce 1.55 % Ce2O3 |
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Hafnium 0.26 % Hf 0.31 % HfO2 |
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Zirconium 10.38 % Zr 14.02 % ZrO2 |
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Titanium 0.23 % Ti 0.38 % TiO2 |
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Manganese 2.65 % Mn 3.42 % MnO |
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Niobium 0.20 % Nb 0.29 % Nb2O5 |
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Iron 3.68 % Fe 0.39 % FeO / 4.83 % Fe2O3 |
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Silicon 22.97 % Si 49.15 % SiO2 |
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Hydrogen 0.87 % H 7.74 % H2O |
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Neodymium 0.16 % Nd 0.18 % Nd2O3 |
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Chlorine 0.90 % Cl 0.90 % Cl |
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- %
Cl -0.20 % -O=Cl2 |
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Oxygen 43.56 % O |
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Fluorine 0.10 % F 0.10 % F |
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- %
F -0.04 % -O=F2 |
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______ ______ |
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100.00 % 100.01 % = TOTAL OXIDE |
| Empirical Formula: |
Na7.12K0.26Ca3.11Sr0.43Ce0.26La0.11Nd0.03Mn2+1.33Fe2+0.15Fe3+1.67Zr3.14Ti0.13Hf0.04
Nb0.06Cl0.7F0.15Si22.58H23.71O75.15 |
| Environment: |
In perialkaline pegmatites. Eudialyte group. |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Mount Karnasurt, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Recalls the Russian acronym IKRAN (Institut Kristallografii Rossiskoy Akadameii Nauky). |
| Synonym: |
IMA2000-010 |
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