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Lepkhenelmite-Zn Mineral Data
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General Lepkhenelmite-Zn Information
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 Chemical Formula: |
Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) |
| Composition: |
Molecular Weight = 1,261.08 gm |
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Potassium 1.64 % K 1.98 % K2O |
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Barium 9.91 % Ba 11.06 % BaO |
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Sodium 0.44 % Na 0.59 % Na2O |
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Strontium 1.53 % Sr 1.81 % SrO |
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Calcium 0.83 % Ca 1.16 % CaO |
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Magnesium 0.02 % Mg 0.03 % MgO |
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Titanium 11.16 % Ti 18.62 % TiO2 |
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Manganese 0.61 % Mn 0.79 % MnO |
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Niobium 7.44 % Nb 10.64 % Nb2O5 |
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Aluminum 0.21 % Al 0.40 % Al2O3 |
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Zinc 2.96 % Zn 3.68 % ZnO |
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Iron 0.18 % Fe 0.23 % FeO |
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Silicon 17.37 % Si 37.16 % SiO2 |
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Hydrogen 1.33 % H 11.84 % H2O |
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Oxygen 44.38 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ba0.91K0.53Ca0.26Na0.24Sr0.22Zn0.57Mn2+0.14Fe2+0.04Mg0.01Ti2.94Nb1.01Si7.8Al0.1O24
O1.38(OH)2.62�6.98(H2O) |
| Environment: |
A hydrothermal mineral in cavities of a eudialyte - aegirine - feldspar pegmatite. Kuzmenkoite subgroup with dominance of Zn in the D structural site. |
| IMA Status: |
Approved IMA 2003 (Dana # Added) |
| Locality: |
Lepkhe-Nelm Mountain, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the locality and composition. |
| Synonym: |
IMA2003-003 |
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