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Gismondine Mineral Data
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General Gismondine Information
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 Chemical Formula: |
Ca2Al4Si4O16•9(H2O) |
| Composition: |
Molecular Weight = 718.55 gm |
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Calcium 11.16 % Ca 15.61 % CaO |
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Aluminum 15.02 % Al 28.38 % Al2O3 |
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Silicon 15.63 % Si 33.45 % SiO2 |
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Hydrogen 2.52 % H 22.56 % H2O |
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Oxygen 55.67 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2Al4Si4O16•9(H2O) |
| Environment: |
Alteration product of plagioclase. |
| IMA Status: |
Valid Species (Pre-IMA) 1817 |
| Locality: |
Capo di Bove, near Rome, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the Italian mineralogist, Carlo Giuseppe Gismondi (1762-1824), lecturer in Mineralogy in Rome. |
| Name Pronunciation: |
Gismondine + Pronunciation  |
| Synonym: |
Abrazite |
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Aricite |
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Gismondite |
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ICSD 61439 |
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PDF 39-1373 |
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Zeagonite |
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