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: B020, P = 89.5 GPa, T = 300 K
      _database_code_amcsd 0004594

      CELL PARAMETERS:    2.5949   8.4009   6.4013   90.000   90.000   90.000
      SPACE GROUP: Cmcm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    139.545
      Density (g/cm3):      6.898
      MAX. ABS. INTENSITY / VOLUME**2:      54.35854450    
      RIR:      2.566
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.15         61.92        4.2004    0   2   0         2
                27.87         39.09        3.2006    0   0   2         2
                35.25        100.00        2.5458    0   2   2         4
                36.23         54.15        2.4793    1   1   0         4
                38.96          1.19        2.3120    1   1   1         8
                43.07         14.55        2.1002    0   4   0         2
                46.32         29.36        1.9600    1   1   2         8
                47.79         55.47        1.9033    1   3   0         4
                47.81          8.75        1.9024    0   2   3         4
                49.99         17.43        1.8244    1   3   1         8
                52.08          6.46        1.7559    0   4   2         4
                56.23         49.25        1.6359    1   3   2         8
                56.94          8.02        1.6173    1   1   3         8
                57.60         18.19        1.6003    0   0   4         2
                62.06          7.13        1.4955    0   2   4         4
                65.74          2.45        1.4204    1   3   3         8
                66.27          7.69        1.4103    1   5   0         4
                66.82          2.49        1.4001    0   6   0         2
                68.07          2.44        1.3773    1   5   1         8
                69.97         21.07        1.3446    1   1   4         8
                72.91         11.54        1.2974    2   0   0         2
                73.36         22.96        1.2906    1   5   2         8
                73.88         17.53        1.2828    0   6   2         4
                74.55         10.30        1.2729    0   4   4         4
                76.91          3.00        1.2397    2   2   0         4
                78.01         12.63        1.2249    1   3   4         8
                79.75          3.10        1.2024    2   0   2         4
                83.66         13.92        1.1560    2   2   2         8
                88.60          3.91        1.1038    2   4   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.