Mineralogy Database

Fergusonite-beta-(Ce) Mineral Data

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General Fergusonite-beta-(Ce) Information

Help on Chemical  Formula: Chemical Formula: (Ce,La,Nd)NbO4
Help on Composition: Composition: Molecular Weight = 288.78 gm
   Lanthanum         9.62 %  La   11.28 % La2O3
   Cerium           19.41 %  Ce   22.73 % Ce2O3
   Praeseodymium     4.88 %  Pr    5.71 % Pr2O3
   La,Ce,Pr,Nd,Sm,   4.99 %  RE    5.82 % REE2O3
   Niobium          28.95 %  Nb   41.42 % Nb2O5
   Neodymium         9.99 %  Nd   11.65 % Nd2O3
   Oxygen           22.16 %  O
                   ______        ______ 
                   100.00 %       98.61 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: La0.2Ce0.4Pr0.1Nd0.2REE0.1Nb0.9O4
Help on Environment: Environment: In magnesian skarn around carbonatite-derived dolomitic marble.
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Bayan Obo Fe-Nb-REE deposit, 130 km north of Baotaou, Inner Mongolia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the dimorphous relationship to fergusonite-(Ce).
Help on Name Pronunciation: Name Pronunciation: Fergusonite-beta-(Ce) + Pronunciation Say FERGUSONITE-BETA-(CE)