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Lemmleinite-Ba Mineral Data
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General Lemmleinite-Ba Information
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 Chemical Formula: |
Na2K2Ba1-xTi4(Si4O12)2(O,OH)4•5(H2O) |
| Composition: |
Molecular Weight = 2,498.97 gm |
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Potassium 5.79 % K 6.97 % K2O |
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Barium 11.54 % Ba 12.88 % BaO |
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Sodium 3.96 % Na 5.33 % Na2O |
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Magnesium 0.19 % Mg 0.32 % MgO |
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Titanium 15.14 % Ti 25.25 % TiO2 |
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Manganese 1.32 % Mn 1.70 % MnO |
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Niobium 0.37 % Nb 0.53 % Nb2O5 |
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Iron 0.22 % Fe 0.29 % FeO |
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Silicon 17.98 % Si 38.47 % SiO2 |
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Hydrogen 0.91 % H 8.15 % H2O |
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Oxygen 42.58 % O |
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______ ______ |
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100.00 % 99.90 % = TOTAL OXIDE |
| Empirical Formula: |
Na4.3K3.7Ba2.1Mn2+0.6Mg0.2Fe2+0.1Ti7.9Nb0.1(Si4O12)4O6.4(OH)1.6�10.5(H2O) |
| Environment: |
Alkaline pegmatites. Labuntsovite group, structure |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Kukisvumchorr Mt, Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Ba-dominant member of the lemmleinite subgroup. |
| Synonym: |
IMA1998-052a |
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