Mineralogy Database

Chopinite Mineral Data

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General Chopinite Information

Help on Chemical  Formula: Chemical Formula: (Mg,Fe)3(PO4)2
Help on Composition: Composition: Molecular Weight = 291.81 gm
   Calcium      0.27 %  Ca    0.38 % CaO
   Magnesium   18.32 %  Mg   30.39 % MgO
   Manganese    0.19 %  Mn    0.24 % MnO
   Iron        16.46 %  Fe   21.17 % FeO
   Silicon      0.19 %  Si    0.41 % SiO2
   Phosphorus  20.70 %  P    47.43 % P2O5
   Oxygen      43.86 %  O
              ______        ______ 
              100.00 %      100.03 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.02Mg2.2Fe2+0.86Mn2+0.01Si0.02P1.95O8
Help on Environment: Environment: Found in a fluorapatite segregation in a quartz mass roughly 10 cm thick and 3 m long in granulite-facies paragneiss. Mg-dominant analogue of sarcopside.
Help on IMA Status: IMA Status: Approved IMA 2006 (Dana # Added)
Help on Locality: Locality: Brattnevet Peninsula, Larsemann Hills, Prydz Bay, East Antarctica. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Christian Chopin, research director at Centre national de la recherche scientifique (CNRS).
Help on Synonym: Synonym: IMA2006-004