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Gjerdingenite-Fe Mineral Data
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General Gjerdingenite-Fe Information
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 Chemical Formula: |
K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]•4(H2O) |
| Composition: |
Molecular Weight = 1,242.18 gm |
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Potassium 6.30 % K 7.58 % K2O |
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Titanium 3.85 % Ti 6.43 % TiO2 |
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Manganese 1.11 % Mn 1.59 % Mn2O3 |
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Niobium 22.44 % Nb 32.10 % Nb2O5 |
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Iron 3.37 % Fe 4.82 % Fe2O3 |
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Silicon 18.09 % Si 38.70 % SiO2 |
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Hydrogen 1.05 % H 9.43 % H2O |
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Oxygen 43.79 % O |
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______ ______ |
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100.00 % 100.64 % = TOTAL OXIDE |
| Empirical Formula: |
K2(H2O)2Fe3+0.75Mn3+0.25Nb3Ti(Si4O12)2O3(OH)�4(H2O) |
| Environment: |
Found in miarolitic cavities in ekerite, a sodic granite. (labuntosovite group; structure) |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Gjerdingselva, Lunnar, Pooland, Norway. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the locality. |
| Synonym: |
IMA2001-009 |
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