MgGeO3
      Kubo A, Kiefer B, Shim S H, Shen G, Prakapenka V B, Duffy T S
      American Mineralogist 93 (2008) 965-976
      Rietveld structure refinement of MgGeO3 post-perovskite phase to 1 Mbar
      Locality: Synthetic
      Sample: B017, P = 92.1 GPa, T = 1740 K
      _database_code_amcsd 0004591

      CELL PARAMETERS:    2.6001   8.4123   6.4099   90.000   90.000   90.000
      SPACE GROUP: Cmcm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    140.203
      Density (g/cm3):      6.866
      MAX. ABS. INTENSITY / VOLUME**2:      53.65832083    
      RIR:      2.545
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.12         58.75        4.2062    0   2   0         2
                25.33          1.70        3.5166    0   2   1         4
                27.84         41.15        3.2050    0   0   2         2
                35.20        100.00        2.5492    0   2   2         4
                36.16         53.66        2.4841    1   1   0         4
                38.88          1.24        2.3163    1   1   1         8
                43.01         14.13        2.1031    0   4   0         2
                46.24         30.13        1.9634    1   1   2         8
                47.70         57.79        1.9066    1   3   0         4
                47.74          9.12        1.9049    0   2   3         4
                49.90         16.73        1.8275    1   3   1         8
                52.01          6.90        1.7583    0   4   2         4
                56.13         49.71        1.6386    1   3   2         8
                56.84          7.75        1.6199    1   1   3         8
                57.51         19.25        1.6025    0   0   4         2
                61.97          6.95        1.4975    0   2   4         4
                65.63          2.60        1.4226    1   3   3         8
                66.15          6.55        1.4125    1   5   0         4
                66.71          2.81        1.4021    0   6   0         2
                67.95          2.44        1.3794    1   5   1         8
                69.85         20.09        1.3466    1   1   4         8
                72.74         11.68        1.3001    2   0   0         2
                73.23         24.67        1.2926    1   5   2         8
                73.76         17.63        1.2845    0   6   2         4
                74.43          9.60        1.2746    0   4   4         4
                76.73          2.94        1.2421    2   2   0         4
                77.87         13.87        1.2267    1   3   4         8
                79.57          3.22        1.2047    2   0   2         4
                83.46         13.98        1.1581    2   2   2         8
                88.40          3.85        1.1058    2   4   0         4
                89.93          2.44        1.0909    1   7   0         4
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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.