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: B019, P = 87.8 GPa, T = 300 K
      _database_code_amcsd 0004593

      CELL PARAMETERS:    2.5971   8.4089   6.4064   90.000   90.000   90.000
      SPACE GROUP: Cmcm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    139.908
      Density (g/cm3):      6.880
      MAX. ABS. INTENSITY / VOLUME**2:      53.74725016    
      RIR:      2.544
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.13         65.51        4.2045    0   2   0         2
                27.85         40.27        3.2032    0   0   2         2
                35.22        100.00        2.5480    0   2   2         4
                36.20         55.54        2.4814    1   1   0         4
                38.92          1.41        2.3139    1   1   1         8
                43.03         15.22        2.1022    0   4   0         2
                45.41          1.37        1.9974    0   4   1         4
                46.28         28.24        1.9617    1   1   2         8
                47.74         54.99        1.9051    1   3   0         4
                47.77          8.08        1.9040    0   2   3         4
                49.95         17.79        1.8260    1   3   1         8
                52.03          5.86        1.7575    0   4   2         4
                56.18         50.71        1.6374    1   3   2         8
                56.89          8.04        1.6186    1   1   3         8
                57.55         18.79        1.6016    0   0   4         2
                62.01          7.25        1.4967    0   2   4         4
                65.68          2.45        1.4216    1   3   3         8
                66.20          8.79        1.4116    1   5   0         4
                66.74          2.37        1.4015    0   6   0         2
                68.00          2.26        1.3786    1   5   1         8
                69.90         21.23        1.3457    1   1   4         8
                72.84         11.65        1.2986    2   0   0         2
                73.28         21.97        1.2918    1   5   2         8
                73.80         17.78        1.2840    0   6   2         4
                74.48         10.43        1.2740    0   4   4         4
                76.83          3.12        1.2407    2   2   0         4
                77.93         12.81        1.2259    1   3   4         8
                79.67          3.17        1.2034    2   0   2         4
                83.57         13.98        1.1570    2   2   2         8
                88.50          4.04        1.1048    2   4   0         4
                90.00          1.71        1.0903    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.