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Gearksutite Mineral Data
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General Gearksutite Information
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 Chemical Formula: |
CaAl(OH,F)5•(H2O) |
| Composition: |
Molecular Weight = 178.08 gm |
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Calcium 22.51 % Ca 31.49 % CaO |
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Aluminum 15.15 % Al 28.63 % Al2O3 |
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Hydrogen 1.70 % H 15.17 % H2O |
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Oxygen 17.97 % O |
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Fluorine 42.67 % F 42.67 % F |
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- %
F -17.97 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
CaAl(OH)F4•(H2O) |
| Environment: |
Alteration product of cryolite. |
| IMA Status: |
Valid Species (Pre-IMA) 1868 |
| Locality: |
Greenland and Ural Mountains, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Greek "Ge", for earth because it is usually earthy and arksutite, from the locality near Arksut fjord. |
| Name Pronunciation: |
Gearksutite + Pronunciation  |
| Synonym: |
Boldyrevite - impure ralstonite or gearksutite |
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ICSD 89800 |
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Paragearksutite |
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