Ankerite
      Ross N L, Reeder R J
      American Mineralogist 77 (1992) 412-421
      High-pressure structural study of dolomite and ankerite
      P = 1.90 GPa
      _database_code_amcsd 0001450

      CELL PARAMETERS:    4.8163   4.8163  15.9920   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    321.263
      Density (g/cm3):      3.214
      MAX. ABS. INTENSITY / VOLUME**2:      31.57992033    
      RIR:      3.199
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.63          3.22        5.3307    0   0   3         2
                22.02          2.21        4.0360    1   0   1         6
                24.06         17.43        3.6981    0   1   2         6
                30.98        100.00        2.8862    1   0   4         6
                37.34         16.23        2.4081    1   1   0         6
                41.13         12.48        2.1946    2  -1   3         6
                41.13          6.86        2.1946    1   1   3         6
                44.92         16.91        2.0180    2   0   2         6
                49.28          7.36        1.8491    0   2   4         6
                50.64         18.17        1.8027    0   1   8         6
                51.12         14.71        1.7868    2  -1   6         6
                51.12         10.03        1.7868    1   1   6         6
                52.37          1.03        1.7470    2   0   5         6
                58.86          2.74        1.5689    2   1   1         6
                59.79          7.02        1.5467   -1   3   2         6
                59.79          3.86        1.5467    1   2   2         6
                62.17          1.59        1.4932    1   0  10         6
                63.42          3.45        1.4666    2   1   4         6
                63.42          4.54        1.4666    3  -1   4         6
                64.58          3.38        1.4431    2   0   8         6
                65.26          2.07        1.4298    1   1   9         6
                67.35          8.15        1.3903    3   0   0         6
                70.69          3.38        1.3327    0   0  12         2
                74.81          2.93        1.2690    0   2  10         6
                77.04          1.19        1.2379   -1   3   8         6
                77.04          2.81        1.2379    1   2   8         6
                82.78          1.78        1.1660    1   1  12         6
                86.73          1.40        1.1227    3  -1  10         6
                86.73          1.34        1.1227    2   1  10         6
                87.85          1.31        1.1113    1   3   4         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.