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Katayamalite Mineral Data
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General Katayamalite Information
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 Chemical Formula: |
(K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2 |
| Composition: |
Molecular Weight = 1,389.99 gm |
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Potassium 2.81 % K 3.39 % K2O |
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Sodium 0.41 % Na 0.56 % Na2O |
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Lithium 1.50 % Li 3.22 % Li2O |
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Calcium 20.18 % Ca 28.24 % CaO |
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Titanium 6.89 % Ti 11.49 % TiO2 |
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Silicon 24.25 % Si 51.87 % SiO2 |
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Hydrogen 0.11 % H 0.97 % H2O |
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Oxygen 43.16 % O |
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Fluorine 0.68 % F 0.68 % F |
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- %
F -0.29 % -O=F2 |
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______ ______ |
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100.00 % 100.14 % = TOTAL OXIDE |
| Empirical Formula: |
KNa0.25Ca7Li3Ti2Si12O36(OH)1.5F0.5 |
| Environment: |
Found in an aegirine syenite. Isostructural with baratovite and is the hydroxyl endmember of the series. |
| IMA Status: |
Approved IMA 1983 |
| Locality: |
Iwagi Islet, Ehime Prefecture, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Nobuo Katayama (1910-), prominent Japanese mineralogist. |
| Name Pronunciation: |
Katayamalite + Pronunciation  |
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