Wadsleyite
      Woodland A B, Angel R J
      American Mineralogist 83 (1998) 404-408
      Crystal structure of a new spinelloid with the wadsleyite structure in the
      system Fe2SiO4-Fe3O4 and implications for the Earth's mantle
      Fe2.45Si.55O4
      _database_code_amcsd 0001980

      CELL PARAMETERS:    5.8559  11.8936   8.3684   90.000   90.000   90.000
      SPACE GROUP: Imma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    582.840
      Density (g/cm3):      4.928
      MAX. ABS. INTENSITY / VOLUME**2:      24.90547398    
      RIR:      1.645
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.94         20.07        6.8440    0   1   1         4
                18.49         21.53        4.7979    1   0   1         4
                24.85          9.38        3.5828    0   3   1         4
                27.25         14.53        3.2730    1   1   2         8
                30.05          8.72        2.9734    0   4   0         2
                30.53          8.85        2.9279    2   0   0         2
                32.98         48.80        2.7158    0   1   3         4
                33.28         67.37        2.6920    2   1   1         8
                34.73         19.50        2.5828    1   3   2         8
                35.52        100.00        2.5274    1   4   1         8
                35.65         39.48        2.5183    1   0   3         4
                37.09         12.74        2.4237    0   4   2         4
                37.49         16.46        2.3989    2   0   2         4
                39.38          4.66        2.2881    0   5   1         4
                39.50         10.86        2.2813    0   3   3         4
                39.76         31.08        2.2672    2   3   1         8
                43.25         26.21        2.0921    0   0   4         2
                43.37         61.20        2.0863    2   4   0         4
                46.58          5.03        1.9499    1   5   2         8
                46.74          3.05        1.9437    1   1   4         8
                47.30          4.73        1.9217    1   4   3         8
                47.85          2.08        1.9009    3   0   1         4
                50.42          4.24        1.8100    0   5   3         4
                50.63         10.29        1.8029    2   5   1         8
                50.73          4.00        1.7996    2   3   3         8
                51.82          4.34        1.7643    1   3   4         8
                52.28          1.83        1.7497    3   1   2         8
                53.56          1.65        1.7110    0   4   4         4
                53.86          4.30        1.7022    2   0   4         4
                55.44          1.64        1.6574    0   1   5         4
                57.01          4.10        1.6154    3   3   2         8
                57.25          8.11        1.6092    1   0   5         4
                57.55         18.71        1.6016    3   4   1         8
                57.64          8.82        1.5993    3   0   3         4
                60.00          7.25        1.5419    0   3   5         4
                60.10          2.63        1.5396    2   5   3         8
                60.94          1.77        1.5203    1   7   2         8
                61.07          2.18        1.5173    1   5   4         8
                62.47         20.34        1.4867    0   8   0         2
                62.91         71.66        1.4773    2   4   4         8
                63.55         19.32        1.4640    4   0   0         2
                64.18          6.53        1.4511    0   7   3         4
                64.36          7.85        1.4474    2   7   1         8
                64.62          3.99        1.4423    2   1   5         8
                65.76          1.01        1.4201    1   8   1         8
                65.79          1.59        1.4195    3   5   2         8
                66.37          1.01        1.4085    3   4   3         8
                68.56          4.21        1.3688    0   5   5         4
                69.76          2.54        1.3480    1   1   6         8
                70.07          1.37        1.3429    3   3   4         8
                71.12          1.12        1.3256    2   8   0         4
                73.49          6.56        1.2887    4   1   3         8
                74.05          6.32        1.2803    1   8   3         8
                74.71          3.40        1.2706    3   0   5         4
                75.19          4.78        1.2637    2   8   2         8
                75.25          2.18        1.2627    0   4   6         4
                75.93          3.68        1.2531    4   4   2         8
                77.47          2.10        1.2321    4   3   3         8
                79.01          4.66        1.2119    0   8   4         4
                79.99          4.35        1.1995    4   0   4         4
                80.41          1.86        1.1943    0   9   3         4
                80.58          2.89        1.1922    2   9   1         8
                85.26          1.29        1.1383    4   5   3         8
                86.07          1.31        1.1297    3   1   6         8
                87.02          1.49        1.1197    2   8   4         8
                89.81          3.46        1.0920    1   8   5         8
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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.