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 P12, P = 38.5 GPa
      _database_code_amcsd 0017573

      CELL PARAMETERS:    4.5190   4.5190  13.4700   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    238.223
      Density (g/cm3):      4.845
      MAX. ABS. INTENSITY / VOLUME**2:      52.23765478    
      RIR:      3.511
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.34         44.38        3.3838    0   1   2         6
                35.16        100.00        2.5526    1   0   4         6
                39.90         24.82        2.2595    1   1   0         6
                44.91         18.30        2.0183    1   1   3        12
                48.44         22.01        1.8791    2   0   2         6
                54.21         11.67        1.6919    0   2   4         6
                57.90         27.71        1.5926    1   1   6        12
                59.79         15.75        1.5467    0   1   8         6
                63.24          1.80        1.4704    2   1   1        12
                64.50         13.74        1.4448    1   2   2        12
                69.39         11.02        1.3543    2   1   4        12
                72.45         11.53        1.3045    3   0   0         6
                74.32          3.86        1.2763    2   0   8         6
                74.50          2.10        1.2737    1   0  10         6
                76.32          1.87        1.2478    1   1   9        12
                86.75          2.64        1.1225    0   0  12         2
                87.85          5.17        1.1113    1   2   8        12
                88.02          2.56        1.1095    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.