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Stilbite-Na Mineral Data
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General Stilbite-Na Information
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 Chemical Formula: |
Na3Ca3[Al8Si28O72]•n(H2O) (n=28-32) |
| Composition: |
Molecular Weight = 2,883.86 gm |
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Sodium 2.39 % Na 3.22 % Na2O |
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Calcium 4.17 % Ca 5.83 % CaO |
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Aluminum 7.48 % Al 14.14 % Al2O3 |
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Silicon 27.27 % Si 58.34 % SiO2 |
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Hydrogen 2.10 % H 18.74 % H2O |
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Oxygen 56.59 % O |
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______ ______ |
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100.00 % 100.28 % = TOTAL OXIDE |
| Empirical Formula: |
Na3Ca3Al8Si28O72•30(H2O) |
| Environment: |
Amygdaloidal cavities in basalts and similar rocks. |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
Capo Pula, Cagliari, Sardinia, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek stilbe - "luster" in allusion to the pearly to vitreous luster. The Na-dominant member of the stilbite series. |
| Name Pronunciation: |
Stilbite-Na  |
| Synonym: |
Aedelforsite |
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Bundle zeolite |
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Desmine |
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Epidesmine |
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