Mineralogy Database

Tritomite-(Ce) Mineral Data

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General Tritomite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: (Ce,La,Ca,Y,Th)5(Si,B)3(O,OH,F)13
Help on Composition: Composition: Molecular Weight = 787.79 gm
   Calcium    10.17 %  Ca   14.24 % CaO
   Lanthanum  17.63 %  La   20.68 % La2O3
   Cerium     26.68 %  Ce   31.25 % Ce2O3
   Yttrium     3.95 %  Y     5.02 % Y2O3
   Thorium     4.42 %  Th    5.03 % ThO2
   Silicon     8.91 %  Si   19.07 % SiO2
   Boron       0.69 %  B     2.21 % B2O3
   Hydrogen    0.38 %  H     3.43 % H2O
   Oxygen     22.34 %  O
   Fluorine    4.82 %  F     4.82 % F
                -   %   F    -2.03 % -O=F2    
             ______        ______ 
             100.00 %      103.71 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 5(Ce0.3)5(Ca0.4)5(La0.2)5(Y0.07)5(Th0.03)Si2.5B0.5O8(OH)3F2
Help on Environment: Environment: Nepheline Syenite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1849
Help on Locality: Locality: Laven Island, Langesundfiord district, near Brevik, southern Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "three" and "to cut," in allusion to the trihedral cavities left in the host rock by the crystals.
Help on Name Pronunciation: Name Pronunciation: Tritomite-(Ce) + Pronunciation Say TRITOMITE-(CE)
Help on Synonym: Synonym: Tritomite