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Majorite Mineral Data
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General Majorite Information
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 Chemical Formula: |
Mg3(Fe,Al,Si)2(SiO4)3 |
| Composition: |
Molecular Weight = 437.99 gm |
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Magnesium 16.65 % Mg 27.61 % MgO |
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Aluminum 3.70 % Al 6.98 % Al2O3 |
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Iron 15.30 % Fe 21.88 % Fe2O3 |
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Silicon 20.52 % Si 43.90 % SiO2 |
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Oxygen 43.84 % O |
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______ ______ |
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100.00 % 100.37 % = TOTAL OXIDE |
| Empirical Formula: |
Mg3Fe3+1.2Al0.6Si0.2(SiO4)3 |
| Environment: |
Formed from low-calcium, high-aluminum pyroxene, olivine, and shock-induced glass, by high-pressure impact metamorphism in bolides. |
| IMA Status: |
Approved IMA 1970 |
| Locality: |
In the Coorara, Catherwood, Pampa del Infierno, Tenham, and Peace River chondritic meteorites. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Alan Major, who assisted A.E. Ringwood in the high-pressure synthesis of garnet from pyroxene. |
| Name Pronunciation: |
Majorite  |
| Synonym: |
ICSD 27373 |
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PDF 25-843 |
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