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 P9, P = 28.62 GPa
      _database_code_amcsd 0017570

      CELL PARAMETERS:    4.5480   4.5480  13.8900   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    248.813
      Density (g/cm3):      4.638
      MAX. ABS. INTENSITY / VOLUME**2:      51.15205359    
      RIR:      3.591
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.01         43.37        3.4261    0   1   2         6
                34.43        100.00        2.6047    1   0   4         6
                39.63         23.66        2.2740    1   1   0         6
                44.38         18.40        2.0411    1   1   3        12
                48.02         21.45        1.8946    2   0   2         6
                53.49         11.57        1.7130    0   2   4         6
                56.75         28.60        1.6223    1   1   6        12
                58.06         16.66        1.5887    0   1   8         6
                62.77          1.76        1.4802    2   1   1        12
                63.96         13.50        1.4556    1   2   2        12
                68.59         10.95        1.3682    2   1   4        12
                71.92         11.47        1.3129    3   0   0         6
                72.10          2.26        1.3099    1   0  10         6
                72.59          3.98        1.3024    2   0   8         6
                74.27          2.07        1.2770    1   1   9        12
                83.52          2.89        1.1575    0   0  12         2
                85.56          2.70        1.1351    0   2  10         6
                86.02          5.25        1.1301    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.