Mineralogy Database

Francoisite-(Nd) Mineral Data

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General Francoisite-(Nd) Information

Help on Chemical  Formula: Chemical Formula: (Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)•6(H2O)
Help on Composition: Composition: Molecular Weight = 1,243.40 gm
   Cerium       0.45 %  Ce    0.53 % Ce2O3
   Samarium     0.73 %  Sm    0.84 % Sm2O3
   Yttrium      0.72 %  Y     0.91 % Y2O3
   Uranium     61.26 %  U    69.49 % UO2
   Phosphorus   4.73 %  P    10.85 % P2O5
   Hydrogen     1.10 %  H     9.85 % H2O
   Neodymium    2.32 %  Nd    2.71 % Nd2O3
   Oxygen      28.69 %  O
              ______        ______ 
              100.00 %       95.17 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Nd0.2Y0.1Sm0.06Ce0.04(UO2)3.2O(PO4)1.9(OH)•6.3(H2O)
Help on Environment: Environment: Alteration product of uraninite in a sedimentary Cu-Co deposit.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Kamoto-East Cu-Co mine, 6 km east of Kolwezi, Katanga Province, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Armand Francois (1922-), former Director of Geology for Gecamine and the dominant neodymium content.
Help on Name Pronunciation: Name Pronunciation: Francoisite-(Nd) + Pronunciation Say FRANCOISITE-(ND)
Help on Synonym: Synonym: ICSD 202796
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