Fe2Mg2O5
      Ballaran T B, Uenver-Thiele L, Woodland A B
      American Mineralogist 100 (2015) 628-632
      Complete substitution of Fe2+ by Mg in Fe4O5: The crystal structure of the
      Mg2Fe2O5 end-member
      Locality: Synthetic
      _database_code_amcsd 0020340

      CELL PARAMETERS:    2.8889   9.7282  12.5523   90.000   90.000   90.000
      SPACE GROUP: Cmcm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    352.767
      Density (g/cm3):      4.534
      MAX. ABS. INTENSITY / VOLUME**2:      25.05596308    
      RIR:      1.800
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.11         16.87        6.2762    0   0   2         2
                18.24          9.31        4.8641    0   2   0         2
                28.13          3.37        3.1720    0   2   3         4
                28.44          2.10        3.1381    0   0   4         2
                32.33          2.03        2.7694    1   1   0         4
                33.13         30.71        2.7043    1   1   1         8
                34.00        100.00        2.6369    0   2   4         4
                35.43         11.95        2.5337    1   1   2         8
                36.96         18.53        2.4320    0   4   0         2
                39.00         12.37        2.3093    1   1   3         8
                40.43         20.86        2.2309    0   2   5         4
                41.88          4.07        2.1571    1   3   0         4
                42.52         45.71        2.1259    1   3   1         8
                44.41         54.24        2.0399    1   3   2         8
                47.30          7.16        1.9218    0   2   6         4
                47.42         32.48        1.9173    1   3   3         8
                48.97          4.71        1.8600    1   1   5         8
                55.01         14.82        1.6693    1   1   6         8
                56.22          4.81        1.6361    1   3   5         8
                57.07          1.20        1.6138    1   5   0         4
                57.59          2.92        1.6006    1   5   1         8
                58.86         11.41        1.5690    0   0   8         2
                59.11          8.46        1.5629    1   5   2         8
                61.32          2.50        1.5118    0   6   3         4
                61.60         18.82        1.5057    1   5   3         8
                61.62         20.31        1.5052    1   1   7         8
                61.77          6.17        1.5018    1   3   6         8
                64.51         16.11        1.4445    2   0   0         2
                64.71         21.29        1.4405    0   6   4         4
                64.98          7.74        1.4351    1   5   4         8
                67.98          6.72        1.3789    1   3   7         8
                68.76          1.23        1.3652    1   1   8         8
                69.21          1.15        1.3575    1   5   5         8
                71.57          8.73        1.3185    0   4   8         4
                74.22          2.60        1.2778    1   5   6         8
                74.97         15.03        1.2668    2   2   4         8
                76.43          1.16        1.2462    1   7   1         8
                76.74          4.10        1.2419    2   4   0         4
                77.76          1.36        1.2282    1   7   2         8
                78.69          3.78        1.2160    0   8   0         2
                78.96          2.62        1.2125    2   2   5         8
                79.13          2.26        1.2104    0   8   1         4
                79.96          1.55        1.1998    1   7   3         8
                79.98          1.05        1.1995    1   5   7         8
                82.33          1.37        1.1712    1   3   9         8
                83.77          1.90        1.1547    2   2   6         8
                84.80          1.39        1.1433    1   1  10         8
                87.44          2.85        1.1154    0   4  10         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.