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 P10, P = 30.6 GPa
      _database_code_amcsd 0017571

      CELL PARAMETERS:    4.5390   4.5390  13.8000   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    246.224
      Density (g/cm3):      4.687
      MAX. ABS. INTENSITY / VOLUME**2:      51.20163047    
      RIR:      3.557
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.09         44.28        3.4155    0   1   2         6
                34.59        100.00        2.5930    1   0   4         6
                39.72         23.84        2.2695    1   1   0         6
                44.52         18.64        2.0353    1   1   3        12
                48.14         21.55        1.8903    2   0   2         6
                53.67         11.66        1.7078    0   2   4         6
                57.01         28.63        1.6155    1   1   6        12
                58.42         16.47        1.5796    0   1   8         6
                62.92          1.73        1.4772    2   1   1        12
                64.12         13.49        1.4524    1   2   2        12
                68.80         11.05        1.3646    2   1   4        12
                72.08         11.61        1.3103    3   0   0         6
                72.61          2.24        1.3021    1   0  10         6
                72.97          3.97        1.2965    2   0   8         6
                74.71          2.06        1.2705    1   1   9        12
                84.19          2.85        1.1500    0   0  12         2
                86.09          2.67        1.1294    0   2  10         6
                86.44          5.27        1.1257    1   2   8        12
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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.