Mineralogy Database

Carbokentbrooksite Mineral Data

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General Carbokentbrooksite Information

Help on Chemical  Formula: Chemical Formula: (Na,[ ])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O
Help on Composition: Composition: Molecular Weight = 3,121.55 gm
   Potassium       0.45 %  K     0.54 % K2O
   Sodium          8.01 %  Na   10.79 % Na2O
   Strontium       1.26 %  Sr    1.49 % SrO
   Calcium         8.04 %  Ca   11.25 % CaO
   Lanthanum       1.60 %  La    1.88 % La2O3
   Cerium          2.69 %  Ce    3.15 % Ce2O3
   Praeseodymium   0.23 %  Pr    0.26 % Pr2O3
   Yttrium         0.37 %  Y     0.47 % Y2O3
   Zirconium       8.68 %  Zr   11.72 % ZrO2
   Titanium        0.26 %  Ti    0.44 % TiO2
   Manganese       0.97 %  Mn    1.25 % MnO
   Niobium         2.62 %  Nb    3.75 % Nb2O5
   Silicon        22.59 %  Si   48.33 % SiO2
   Hydrogen        0.14 %  H     1.25 % H2O
   Carbon          0.23 %  C     0.83 % CO2
   Neodymium       0.69 %  Nd    0.81 % Nd2O3
   Chlorine        0.31 %  Cl    0.31 % Cl
                    -   %   Cl   -0.07 % -O=Cl2   
   Oxygen         40.87 %  O
                 ______        ______ 
                 100.00 %       98.46 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na9.48Ca0.94K0.36Na1.39Sr0.45Ce0.6La0.36Nd0.15Pr0.05Ca5.32Mn2+0.55Y0.13Zr2.97Nb0.88 Ti0.17Si25.11O73.62(OH)4.34Cl0.27(CO3)0.59
Help on Environment: Environment: From the quartz core of a zoned pegmatite. Forms the core of a zoned crystal with zirsilite-(Ce) rim. Eudialyte group; structure determined
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Dara-i-Pioz alkaline massif, Tajikistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for it's relationship to kentbrooksite.
Help on Synonym: Synonym: IMA2002-056