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Eveslogite Mineral Data
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General Eveslogite Information
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 Chemical Formula: |
(Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14 |
| Composition: |
Molecular Weight = 6,800.28 gm |
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Potassium 7.05 % K 8.50 % K2O |
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Rubidium 0.18 % Rb 0.19 % Rb2O |
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Barium 2.52 % Ba 2.82 % BaO |
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Sodium 3.48 % Na 4.69 % Na2O |
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Strontium 2.32 % Sr 2.74 % SrO |
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Calcium 13.24 % Ca 18.52 % CaO |
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Zirconium 0.25 % Zr 0.34 % ZrO2 |
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Tantalum 0.21 % Ta 0.26 % Ta2O5 |
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Titanium 3.89 % Ti 6.50 % TiO2 |
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Manganese 0.77 % Mn 1.10 % Mn2O3 |
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Niobium 4.56 % Nb 6.53 % Nb2O5 |
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Aluminum 0.16 % Al 0.31 % Al2O3 |
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Iron 0.85 % Fe 0.88 % FeO / 0.23 % Fe2O3 |
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Silicon 19.54 % Si 41.79 % SiO2 |
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Hydrogen 0.32 % H 2.84 % H2O |
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Chlorine 0.42 % Cl 0.42 % Cl |
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- %
Cl -0.09 % -O=Cl2 |
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Oxygen 37.53 % O |
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Fluorine 2.71 % F 2.71 % F |
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- %
F -1.14 % -O=F2 |
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______ ______ |
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100.00 % 100.14 % = TOTAL OXIDE |
| Empirical Formula: |
Ca22.46K12.27Na10.3Sr1.8Ba1.25Ti5.53Nb3.34Mn3+0.95Fe2+0.83Fe3+0.2Zr0.19Rb0.14Ta0.08
(OH)12Si47.3Al0.41O138.08(OH)9.42Cl0.8 |
| Environment: |
Veins cutting nephneline syenite. (close to astrophyllite) |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Mt. Eveslogchorr, Khibiny alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality |
| Synonym: |
IMA2001-023 |
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