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Katoite Mineral Data
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General Katoite Information
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 Chemical Formula: |
Ca3Al2(SiO4)3-x(OH)4x x=1.5-3 |
| Composition: |
Molecular Weight = 414.37 gm |
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Calcium 29.02 % Ca 40.60 % CaO |
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Aluminum 13.02 % Al 24.61 % Al2O3 |
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Silicon 10.17 % Si 21.75 % SiO2 |
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Hydrogen 1.46 % H 13.04 % H2O |
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Oxygen 46.33 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca3Al2(SiO4)1.5(OH)6 |
| Environment: |
A hydrothermal mineral in cavities in a phonolitic lava flow that erupted through an argillaceous marl. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Campomorto quarry, near Montalto di Castro, Lazio, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Akira Kato, mineralogist of the National Science Museum, Tokyo, Japan. |
| Name Pronunciation: |
Katoite  |
| Synonym: |
Hydrogrossular |
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ICSD 202315 |
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PDF 38-368 |
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