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Chevkinite-(Ce) Mineral Data
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General Chevkinite-(Ce) Information
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 Chemical Formula: |
(Ce,La,Ca,Th)4(Fe++,Mg)2(Ti,Fe+++)3Si4O22 |
| Composition: |
Molecular Weight = 1,205.27 gm |
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Calcium 2.66 % Ca 3.72 % CaO |
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Lanthanum 16.13 % La 18.92 % La2O3 |
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Cerium 19.76 % Ce 23.15 % Ce2O3 |
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Thorium 1.93 % Th 2.19 % ThO2 |
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Magnesium 0.40 % Mg 0.67 % MgO |
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Titanium 9.93 % Ti 16.57 % TiO2 |
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Iron 10.66 % Fe 10.73 % FeO / 3.31 % Fe2O3 |
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Silicon 9.32 % Si 19.94 % SiO2 |
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Oxygen 29.20 % O |
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______ ______ |
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100.00 % 99.20 % = TOTAL OXIDE |
| Empirical Formula: |
Ce1.7La1.4Ca0.8Th0.1Fe2+1.8Mg0.2Ti2.5Fe3+0.5Si4O22 |
| Environment: |
Secondary mineral in titanium and cerium bearing rocks and as an accessory mineral in some granites. |
| IMA Status: |
Valid Species (Pre-IMA) 1839 |
| Locality: |
Miask in the Ilmen Mountains, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for General Konstatin Vladimirovich Tschevkin [Chevkin] (1802-1875), Chief o f Staff of the Russian Mining Engineers Corps. |
| Name Pronunciation: |
Chevkinite-(Ce) + Pronunciation  |
| Synonym: |
Tscheffkinite |
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