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Davyne Mineral Data
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General Davyne Information
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 Chemical Formula: |
Na4K2Ca2Si6Al6O24(SO4)Cl2 |
| Composition: |
Molecular Weight = 1,084.25 gm |
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Potassium 5.63 % K 6.78 % K2O |
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Sodium 7.51 % Na 10.12 % Na2O |
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Calcium 8.98 % Ca 12.57 % CaO |
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Aluminum 15.43 % Al 29.15 % Al2O3 |
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Silicon 15.02 % Si 32.14 % SiO2 |
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Sulfur 1.77 % S 4.43 % SO3 |
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Chlorine 6.70 % Cl 6.70 % Cl |
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- %
Cl -1.51 % -O=Cl2 |
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Oxygen 38.96 % O |
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______ ______ |
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100.00 % 100.38 % = TOTAL OXIDE |
| Empirical Formula: |
Na3.54Ca2.43K1.56Al6.2Si5.8O24Cl2.05(SO4)0.6 |
| Environment: |
In volcanic ejecta and in leucite-rich lavas. |
| IMA Status: |
Valid Species (Pre-IMA) 1825 |
| Locality: |
Mte. Somma, Vesuvius, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Sir Humphrey Davy (1778-1829), famous English chemist who discovered the following elements: B, Ba, Ca, K, Mg, Na, and Sr. |
| Name Pronunciation: |
Davyne  |
| Synonym: |
ICSD 68940 |
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PDF 20-379 |
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