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Herschelite Mineral Data
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General Herschelite Information
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 Chemical Formula: |
(Na,Ca,K)AlSi2O6•3(H2O) |
| Composition: |
Molecular Weight = 261.30 gm |
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Potassium 2.99 % K 3.60 % K2O |
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Sodium 7.04 % Na 9.49 % Na2O |
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Calcium 0.77 % Ca 1.07 % CaO |
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Aluminum 11.36 % Al 21.46 % Al2O3 |
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Silicon 20.42 % Si 43.69 % SiO2 |
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Hydrogen 2.31 % H 20.68 % H2O |
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Oxygen 55.11 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na0.8K0.2Ca0.05Al1.1Si1.9O6•3(H2O) |
| Environment: |
In cavities in basalts. Species name changed to chabazite-Na by the IMA Commission on zeolites. |
| IMA Status: |
Discredited IMA 1997 - Valid Species (Pre-IMA) 1825 |
| Locality: |
From Aci Castello and nearby on the flanks of Mt. Etna, Sicily. Link to MinDat.org Location Data. |
| Name Origin: |
Named in 1825 for John Frederick William Herschel (1792-1871), British astronomer. |
| Name Pronunciation: |
Herschelite + Pronunciation  |
| Synonym: |
Discredited IMA 1997 |
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