Mineralogy Database

Astrocyanite-(Ce) Mineral Data

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General Astrocyanite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2•1.5(H2O)
Help on Composition: Composition: Molecular Weight = 951.38 gm
   Lanthanum       2.92 %  La    3.42 % La2O3
   Cerium          1.47 %  Ce    1.73 % Ce2O3
   Praeseodymium   2.96 %  Pr    3.47 % Pr2O3
   Samarium        1.58 %  Sm    1.83 % Sm2O3
   Uranium        25.02 %  U    28.38 % UO2
   Copper         13.36 %  Cu   15.04 % Cu2O
   Hydrogen        0.78 %  H     7.01 % H2O
   Carbon          6.31 %  C    23.13 % CO2
   Neodymium       9.10 %  Nd   10.61 % Nd2O3
   Oxygen         36.49 %  O
                 ______        ______ 
                 100.00 %       94.62 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2Ce0.1Nd0.6La0.2Pr0.2Sm0.1(UO2)(CO3)5(OH)2�2.7(H2O)
Help on Environment: Environment: In the oxidation zone of the uranium-bearing portion of a Cu-Co deposit.
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Kamoto-East Cu-Co mine, 5 km west of Kolwezi, Katanga Province, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "star" and "blue" alluding to the star-like habit and blue color and the dominant Ce.
Help on Name Pronunciation: Name Pronunciation: Astrocyanite-(Ce) + Pronunciation Say ASTROCYANITE-(CE)
Help on Synonym: Synonym: IMA1989-032