Mineralogy Database

Tornebohmite-(Ce) Mineral Data

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General Tornebohmite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: (Ce,La,Nd)2Al(SiO4)2(OH)
Help on Composition: Composition: Molecular Weight = 509.02 gm
   Lanthanum  13.64 %  La   16.00 % La2O3
   Cerium     33.03 %  Ce   38.69 % Ce2O3
   Aluminum    5.30 %  Al   10.02 % Al2O3
   Silicon    11.04 %  Si   23.61 % SiO2
   Hydrogen    0.20 %  H     1.77 % H2O
   Neodymium   8.50 %  Nd    9.92 % Nd2O3
   Oxygen     28.29 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ce1.2La0.5Nd0.3Al(SiO4)2(OH)
Help on Environment: Environment: Rare-earth ore deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1921
Help on Locality: Locality: Bastnaes mine near Riddarhyttan, Vastmanland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Alfred Ellis Tornebohm (1839-1911), former director of the Geological Survey of Sweden.
Help on Name Pronunciation: Name Pronunciation: Tornebohmite-(Ce) + Pronunciation Say TORNEBOHMITE-(CE)