Mineralogy Database

Biraite-(Ce) Mineral Data

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General Biraite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: Ce2Fe++(CO3)(Si2O7)
Help on Composition: Composition: Molecular Weight = 551.07 gm
   Barium          0.25 %  Ba    0.28 % BaO
   Sodium          0.08 %  Na    0.11 % Na2O
   Calcium         0.51 %  Ca    0.71 % CaO
   Lanthanum      14.37 %  La   16.85 % La2O3
   Cerium         25.68 %  Ce   30.08 % Ce2O3
   Praeseodymium   2.30 %  Pr    2.69 % Pr2O3
   Samarium        0.55 %  Sm    0.63 % Sm2O3
   Magnesium       1.10 %  Mg    1.83 % MgO
   Titanium        0.09 %  Ti    0.14 % TiO2
   Manganese       1.10 %  Mn    1.42 % MnO
   Iron            6.08 %  Fe    7.82 % FeO
   Silicon        10.04 %  Si   21.48 % SiO2
   Carbon          2.16 %  C     7.91 % CO2
   Neodymium       6.54 %  Nd    7.63 % Nd2O3
   Oxygen         28.57 %  O
   Fluorine        0.59 %  F     0.59 % F
                    -   %   F    -0.25 % -O=F2    
                 ______        ______ 
                 100.00 %       99.93 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: La0.57Nd0.25Pr0.09Sm0.02Ca0.07Na0.02Ba0.01Fe2+0.6Mg0.25Mn2+0.11Ti0.01(CO3)0.99Si1.97 O6.87F0.17
Help on Environment: Environment: Found in one of the veins of carbonate rocks among the fenites of Biraia cabonatite dike.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Biraia, Vitim, Irkutsk Oblast, Zabaikalye, (Siberia), Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA2003-037