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Eifelite Mineral Data
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General Eifelite Information
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 Chemical Formula: |
KNa3Mg4Si12O30 |
| Composition: |
Molecular Weight = 1,022.30 gm |
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Potassium 3.82 % K 4.61 % K2O |
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Sodium 6.75 % Na 9.09 % Na2O |
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Magnesium 9.51 % Mg 15.77 % MgO |
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Silicon 32.97 % Si 70.53 % SiO2 |
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Oxygen 46.95 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KNa3Mg4Si12O30 |
| Environment: |
In vesicles in contact metamorphosed basement gneiss xenoliths in leucite tephrite. Forms a series with roedderite. |
| IMA Status: |
Approved IMA 1980 |
| Locality: |
From the Bellerberg volcano, two km north of Mayen, Eifel district, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Eifelite  |
| Synonym: |
ICSD 23373 |
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PDF 35-588 |
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