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Tundrite-(Ce) Mineral Data
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General Tundrite-(Ce) Information
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Chemical Formula: |
Na2Ce2TiO2(SiO4)(CO3)2 |
Composition: |
Molecular Weight = 614.89 gm |
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Sodium 7.13 % Na 9.61 % Na2O |
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Calcium 0.25 % Ca 0.36 % CaO |
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Lanthanum 14.03 % La 16.45 % La2O3 |
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Cerium 23.47 % Ce 27.49 % Ce2O3 |
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Praeseodymium 1.86 % Pr 2.17 % Pr2O3 |
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Samarium 0.34 % Sm 0.40 % Sm2O3 |
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Titanium 6.81 % Ti 11.37 % TiO2 |
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Niobium 1.65 % Nb 2.36 % Nb2O5 |
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Silicon 4.44 % Si 9.49 % SiO2 |
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Hydrogen 0.04 % H 0.37 % H2O |
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Carbon 3.86 % C 14.16 % CO2 |
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Neodymium 5.37 % Nd 6.27 % Nd2O3 |
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Oxygen 30.75 % O |
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______ ______ |
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100.00 % 100.47 % = TOTAL OXIDE |
Empirical Formula: |
Na1.9Ca0.03Ce1.03La0.62Nd0.22Pr0.08Sm0.01Ti0.87Nb0.1O2H0.25(SiO4)0.972(CO3)0.98 |
Environment: |
Occurs in nepheline syenite pegmatites. |
IMA Status: |
Approved IMA 1963 |
Locality: |
Mt. Nepkha, Lovozero tundra, Kola Peninsula, Russa and Mont Saint-Hilaire quarry, Quebec, Canada. Link to MinDat.org Location Data. |
Name Origin: |
Named after the Russian locality. |
Name Pronunciation: |
Tundrite-(Ce) |
Synonym: |
ICSD 20932 |
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PDF 25-1188 |
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