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Leucophanite Mineral Data
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General Leucophanite Information
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 Chemical Formula: |
(Na,Ca)2BeSi2(O,OH,F)7 |
| Composition: |
Molecular Weight = 235.92 gm |
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Sodium 14.62 % Na 19.70 % Na2O |
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Calcium 8.49 % Ca 11.88 % CaO |
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Beryllium 3.82 % Be 10.60 % BeO |
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Silicon 23.81 % Si 50.94 % SiO2 |
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Hydrogen 0.90 % H 8.02 % H2O |
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Oxygen 42.72 % O |
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Fluorine 5.64 % F 5.64 % F |
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- %
F -2.37 % -O=F2 |
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______ ______ |
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100.00 % 104.41 % = TOTAL OXIDE |
| Empirical Formula: |
Na1.5Ca0.5BeSi2O4.2(OH)2.1F0.7 |
| IMA Status: |
Valid Species (Pre-IMA) 1840 |
| Locality: |
Langesundfiord district, southern Norway. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek leucos, "white" and phanein, " to appear" in allusion to the white color |
| Name Pronunciation: |
Leucophanite  |
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