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Hydrougrandite Mineral Data
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General Hydrougrandite Information
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 Chemical Formula: |
(Ca,Mg,Fe++)3(Fe+++,Al)2(SiO4)3-x(OH)4x |
| Composition: |
Molecular Weight = 460.23 gm |
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Calcium 15.68 % Ca 21.93 % CaO |
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Magnesium 4.75 % Mg 7.88 % MgO |
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Aluminum 2.93 % Al 5.54 % Al2O3 |
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Iron 21.84 % Fe 4.68 % FeO / 26.02 % Fe2O3 |
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Silicon 12.21 % Si 26.11 % SiO2 |
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Hydrogen 0.88 % H 7.83 % H2O |
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Oxygen 41.72 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.8Mg0.9Fe2+0.3Fe3+1.5Al0.5(SiO4)2(OH)4 |
| IMA Status: |
Discredited IMA 1966 - Valid Species (Pre-IMA) 1954 |
| Locality: |
Hsiao-sungshan, China. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the hydrous analog of ugrandite. |
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