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Ershovite Mineral Data
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General Ershovite Information
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 Chemical Formula: |
Na4K3(Fe++,Mn++,Ti)2Si8O20(OH)4•5(H2O) |
| Composition: |
Molecular Weight = 1,022.20 gm |
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Potassium 11.47 % K 13.82 % K2O |
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Sodium 9.22 % Na 12.43 % Na2O |
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Titanium 1.87 % Ti 3.13 % TiO2 |
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Manganese 3.76 % Mn 4.86 % MnO |
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Iron 4.92 % Fe 6.33 % FeO |
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Silicon 21.98 % Si 47.02 % SiO2 |
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Hydrogen 1.38 % H 12.34 % H2O |
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Oxygen 45.39 % O |
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______ ______ |
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100.00 % 99.92 % = TOTAL OXIDE |
| Empirical Formula: |
Na4.1K3Fe2+0.9Mn2+0.7Ti0.4Si8O20(OH)4�5(H2O) |
| Environment: |
In hyperagpaitic pegmatites. |
| IMA Status: |
Approved IMA 1993 |
| Locality: |
Mt. Koashva, SE part of the Khibina alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named after Prof. Vadim Viktorovich Ershov (1939-1989) of the Moscow Mining Institute. |
| Name Pronunciation: |
Ershovite + Pronunciation  |
| Synonym: |
ICSD 39449 |
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IMA1991-014 |
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PDF 46-1424 |
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