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 = 8.49 GPa, X = .00
      _database_code_amcsd 0002443

      CELL PARAMETERS:    5.6261  11.3158   8.1132   90.000   90.000   90.000
      SPACE GROUP: Imma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    516.517
      Density (g/cm3):      3.618
      MAX. ABS. INTENSITY / VOLUME**2:      8.048130593    
      RIR:      0.724
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.24         44.94        3.1596    1   1   2         8
                31.63         14.44        2.8289    0   4   0         2
                31.81         14.33        2.8131    2   0   0         2
                34.09         51.28        2.6303    0   1   3         4
                34.67         60.43        2.5874    2   1   1         8
                36.23         20.21        2.4796    1   3   2         8
                36.88         36.69        2.4374    1   0   3         4
                37.26         97.32        2.4130    1   4   1         8
                38.81          3.96        2.3204    0   4   2         4
                38.96          1.56        2.3116    2   0   2         4
                41.07         13.05        2.1979    0   3   3         4
                41.42          3.09        2.1799    0   5   1         4
                41.57         30.46        2.1726    2   3   1         8
                44.68         35.29        2.0283    0   0   4         2
                45.47         78.51        1.9947    2   4   0         4
                48.38          4.05        1.8815    1   1   4         8
                48.84          4.54        1.8647    1   5   2         8
                49.35          1.75        1.8466    1   4   3         8
                52.74          7.65        1.7356    0   5   3         4
                52.86          1.80        1.7319    2   3   3         8
                53.15          7.81        1.7231    2   5   1         8
                53.84          6.54        1.7026    1   3   4         8
                54.51          5.13        1.6833    3   1   2         8
                55.77          2.71        1.6484    0   4   4         4
                55.88          7.12        1.6452    2   0   4         4
                57.37          1.04        1.6062    0   1   5         4
                59.27          8.40        1.5591    1   0   5         4
                59.59          4.52        1.5516    3   3   2         8
                60.03         10.11        1.5411    3   0   3         4
                60.30         15.75        1.5349    3   4   1         8
                62.29          4.13        1.4906    0   3   5         4
                63.80          3.29        1.4588    1   5   4         8
                64.19          4.50        1.4509    1   7   2         8
                65.65        100.00        1.4222    2   4   4         8
                66.05         26.74        1.4145    0   8   0         2
                66.47         26.96        1.4065    4   0   0         2
                67.10          1.25        1.3948    2   1   5         8
                67.50          7.64        1.3876    0   7   3         4
                67.86          5.08        1.3811    2   7   1         8
                68.66          1.03        1.3669    3   1   4         8
                69.04          1.60        1.3604    3   5   2         8
                71.55          3.55        1.3187    0   5   5         4
                72.36          1.83        1.3060    1   1   6         8
                73.17          1.86        1.2935    3   3   4         8
                75.19          1.73        1.2637    2   8   0         4
                75.48          1.83        1.2594    4   4   0         4
                76.77          1.80        1.2415    1   3   6         8
                76.86          7.06        1.2403    4   1   3         8
                77.84          4.34        1.2271    3   0   5         4
                78.12          6.08        1.2234    1   8   3         8
                81.19          2.84        1.1847    4   3   3         8
                81.89          1.20        1.1764    3   5   4         8
                82.24          2.01        1.1722    3   7   2         8
                83.28          4.89        1.1602    0   8   4         4
                83.67          4.81        1.1558    4   0   4         4
                85.09          1.65        1.1401    0   9   3         4
                85.42          3.81        1.1366    2   9   1         8
                89.74          2.50        1.0927    4   5   3         8
                89.85          1.19        1.0917    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.