Siderite
      Lavina B, Dera P, Downs R T, Yang W, Sinogeikin S, Meng Y, Shen G, Schiferl D
      Physical Review B82 (2010)  064110-8
      Structure of siderite FeCO3 to 56 GPa and hysteresis of its spin-pairing transition
      Locality: Invigtut, Greenland
      Note: run P14, P = 41.2 GPa
      _database_code_amcsd 0017576

      CELL PARAMETERS:    4.5140   4.5140  13.3400   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    235.402
      Density (g/cm3):      4.903
      MAX. ABS. INTENSITY / VOLUME**2:      52.71446446    
      RIR:      3.501
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.43         44.94        3.3727    0   1   2         6
                35.38        100.00        2.5372    1   0   4         6
                39.94         25.24        2.2570    1   1   0         6
                45.05         18.55        2.0126    1   1   3        12
                48.53         22.47        1.8757    2   0   2         6
                54.41         11.84        1.6863    0   2   4         6
                58.25         27.99        1.5839    1   1   6        12
                60.35         15.66        1.5338    0   1   8         6
                63.33          1.84        1.4686    2   1   1        12
                64.61         14.15        1.4426    1   2   2        12
                69.59         11.28        1.3509    2   1   4        12
                72.54         11.91        1.3031    3   0   0         6
                74.85          3.91        1.2686    2   0   8         6
                75.27          2.12        1.2625    1   0  10         6
                76.96          1.88        1.2389    1   1   9        12
                87.81          2.66        1.1117    0   0  12         2
                88.39          5.31        1.1059    1   2   8        12
                88.80          2.62        1.1018    0   2  10         6
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.