Mineralogy Database

Graulichite-(Ce) Mineral Data

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General Graulichite-(Ce) Information

Help on Chemical Formula: Chemical Formula: CeFe+++3(AsO4)2(OH)6
Help on Composition: Composition: Molecular Weight = 680.93 gm
   Barium      3.63 %  Ba    4.05 % BaO
   Strontium   0.26 %  Sr    0.30 % SrO
   Lanthanum   2.04 %  La    2.39 % La2O3
   Cerium     13.79 %  Ce   16.15 % Ce2O3
   Aluminum    1.66 %  Al    3.14 % Al2O3
   Iron       21.98 %  Fe   31.43 % Fe2O3
   Arsenic    20.80 %  As   31.90 % As2O5
   Hydrogen    0.95 %  H     8.49 % H2O
   Sulfur      0.05 %  S     0.11 % S2O5
   Neodymium   1.91 %  Nd    2.22 % Nd2O3
   Oxygen     32.94 %  O
             ______        ______ 
             100.00 %      100.19 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ce0.67Ba0.18La0.1Nd0.09Sr0.02Fe3+2.68Al0.42As1.89S0.01O8(OH)5.62(H2O)0.4
Help on Environment: Environment: Formed from weathering arsenopyrite-bearing quartzite. Fe-dominant analogue of arsenoflorencite-(Ce).
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Hourt quarry, Stavelot Massif, Belgian Ardennes. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Jean-Marie Graulich (1920-2001), Belgian mining engineer and Honorary Driector of the Geological survey of Belgium.
Help on Synonym: Synonym: IMA2002-001