Wadsleyite
      Hazen R M, Weinberger M B, Yang H, Prewitt C T
      American Mineralogist 85 (2000) 770-777
      Comparative high-pressure crystal chemistry of wadsleyite,
      beta-(Mg_1-xFe_x)2SiO4, with x=0 and 0.25
      Sample: P = 10.12 GPa, X = .25
      _database_code_amcsd 0002450

      CELL PARAMETERS:    5.6365  11.3464   8.1358   90.000   90.000   90.000
      SPACE GROUP: Imma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    520.317
      Density (g/cm3):      3.789
      MAX. ABS. INTENSITY / VOLUME**2:      9.032647375    
      RIR:      0.776
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.39          9.18        6.6118    0   1   1         4
                15.62          2.03        5.6732    0   2   0         2
                21.85          2.75        4.0679    0   0   2         2
                24.81          5.87        3.5885    1   2   1         8
                25.98          2.96        3.4297    0   3   1         4
                26.97          1.42        3.3059    0   2   2         4
                28.17         37.37        3.1674    1   1   2         8
                31.54         25.11        2.8366    0   4   0         2
                31.75          4.86        2.8182    2   0   0         2
                33.99         63.33        2.6376    0   1   3         4
                34.60         78.69        2.5926    2   1   1         8
                36.13         18.74        2.4859    1   3   2         8
                36.78         29.16        2.4438    1   0   3         4
                37.16         82.61        2.4192    1   4   1         8
                40.95         16.41        2.2039    0   3   3         4
                41.30          5.75        2.1858    0   5   1         4
                41.47         41.28        2.1774    2   3   1         8
                44.55         38.15        2.0340    0   0   4         2
                45.36         83.28        1.9993    2   4   0         4
                48.24          4.10        1.8866    1   1   4         8
                48.70          4.95        1.8696    1   5   2         8
                49.21          1.10        1.8515    1   4   3         8
                50.89          2.56        1.7943    2   4   2         8
                52.59          9.75        1.7404    0   5   3         4
                52.73          5.31        1.7361    2   3   3         8
                53.02         10.05        1.7272    2   5   1         8
                53.69          6.24        1.7072    1   3   4         8
                54.39          4.21        1.6867    3   1   2         8
                55.73         10.89        1.6493    2   0   4         4
                57.19          1.66        1.6107    0   1   5         4
                59.09          6.60        1.5633    1   0   5         4
                59.45          4.11        1.5549    3   3   2         8
                59.89          8.70        1.5444    3   0   3         4
                60.16         12.27        1.5381    3   4   1         8
                62.10          5.72        1.4947    0   3   5         4
                62.75          1.76        1.4808    2   5   3         8
                63.61          3.25        1.4627    1   5   4         8
                64.00          3.48        1.4548    1   7   2         8
                65.46        100.00        1.4258    2   4   4         8
                65.85         26.79        1.4183    0   8   0         2
                66.34         26.65        1.4091    4   0   0         2
                66.91          2.56        1.3984    2   1   5         8
                67.30          9.53        1.3913    0   7   3         4
                67.67          6.90        1.3846    2   7   1         8
                68.49          1.09        1.3700    3   1   4         8
                68.86          1.69        1.3635    3   5   2         8
                71.32          4.55        1.3224    0   5   5         4
                72.13          1.97        1.3095    1   1   6         8
                72.97          1.76        1.2965    3   3   4         8
                75.31          3.00        1.2620    4   4   0         4
                76.53          1.27        1.2449    1   3   6         8
                76.67          8.58        1.2429    4   1   3         8
                77.62          3.66        1.2300    3   0   5         4
                77.87          4.93        1.2267    1   8   3         8
                80.99          3.50        1.1872    4   3   3         8
                81.65          1.16        1.1792    3   5   4         8
                82.01          1.54        1.1750    3   7   2         8
                83.00          5.47        1.1634    0   8   4         4
                83.45          5.42        1.1583    4   0   4         4
                84.81          2.08        1.1432    0   9   3         4
                85.15          4.85        1.1395    2   9   1         8
                89.49          3.15        1.0952    4   5   3         8
                89.57          1.28        1.0944    3   1   6         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.