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Cerite-(La) Mineral Data
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General Cerite-(La) Information
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 Chemical Formula: |
(La,Ce,Ca)9(Mg,Fe+++)(SiO4)6[SiO3(OH)](OH)3 |
| Composition: |
Molecular Weight = 1,825.93 gm |
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Strontium 1.68 % Sr 1.99 % SrO |
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Calcium 3.69 % Ca 5.16 % CaO |
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Lanthanum 32.41 % La 38.01 % La2O3 |
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Cerium 20.49 % Ce 24.00 % Ce2O3 |
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Praeseodymium 0.54 % Pr 0.63 % Pr2O3 |
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Samarium 0.08 % Sm 0.10 % Sm2O3 |
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Gadolinium 0.17 % Gd 0.20 % Gd2O3 |
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Magnesium 0.31 % Mg 0.51 % MgO |
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Iron 0.98 % Fe 1.26 % FeO |
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Silicon 9.78 % Si 20.93 % SiO2 |
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Phosphorus 1.09 % P 2.49 % P2O5 |
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Hydrogen 0.36 % H 3.24 % H2O |
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Neodymium 1.26 % Nd 1.47 % Nd2O3 |
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Oxygen 27.16 % O |
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______ ______ |
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100.00 % 99.97 % = TOTAL OXIDE |
| Empirical Formula: |
La4.26Ce2.67Ca1.38Sr0.35Nd0.16Pr0.07Gd0.02Sm0.01Fe2+0.32Ca0.3Mg0.23(SiO4)34(Si0.84)
4(P0.16)4(O3.11)4(OH)(OH)2.56 |
| Environment: |
Late-stage, low-temperature, secondary phase in a zoned aegirine-natrolite vein that cuts foyaite. |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Mt. Yuksporr, Khibina massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the La dominant analog of cerite-(Ce). |
| Synonym: |
IMA2001-042 |
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