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Lemmleinite-K Mineral Data
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General Lemmleinite-K Information
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 Chemical Formula: |
NaK2(Ti,Nb)2Si4O12(O,OH)2•2(H2O) |
| Composition: |
Molecular Weight = 596.73 gm |
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Potassium 13.10 % K 15.79 % K2O |
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Sodium 3.85 % Na 5.19 % Na2O |
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Titanium 11.23 % Ti 18.74 % TiO2 |
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Niobium 9.34 % Nb 13.36 % Nb2O5 |
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Silicon 18.83 % Si 40.28 % SiO2 |
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Hydrogen 0.74 % H 6.64 % H2O |
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Oxygen 42.90 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaK2Ti1.4Nb0.6Si4O13.6(OH)0.4•2(H2O) |
| Environment: |
Found in hyperagpaitic pegmatites. The Ti-dominant analogue of nenadkevichite. |
| IMA Status: |
Approved IMA 1997 (Dana # Added) |
| Locality: |
Mount Koashava, Khibina alkaline massif, Kola Penninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Georgy G. Lemmlein (1901-1962), prominent Russian mineralogist and crystallographer. |
| Synonym: |
IMA1997-003 |
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IMA2000-A |
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Lemmleinite |
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