Wadsleyite
      Kudoh Y, Inoue T, Arashi H
      Physics and Chemistry of Minerals 23 (1996) 461-469
      Structure and crystal chemistry of hydrous wadsleyite, Mg1.75SiH0.5O4:
      possible hydrous magnesium silicate in the mantle transition zone
      Locality: synthetic
      _database_code_amcsd 0007971

      CELL PARAMETERS:    5.6630  11.5460   8.2470   90.000   90.000   90.000
      SPACE GROUP: Imma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    539.230
      Density (g/cm3):      3.307
      MAX. ABS. INTENSITY / VOLUME**2:      8.776105579    
      RIR:      0.864
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.19          5.52        6.7109    0   1   1         4
                21.55          2.78        4.1235    0   0   2         2
                27.86         36.68        3.2026    1   1   2         8
                30.98          9.63        2.8865    0   4   0         2
                31.60         16.08        2.8315    2   0   0         2
                33.51         35.19        2.6742    0   1   3         4
                34.38         39.85        2.6088    2   1   1         8
                35.63         18.20        2.5197    1   3   2         8
                36.33         31.00        2.4730    1   0   3         4
                36.60         81.23        2.4551    1   4   1         8
                38.05          8.70        2.3647    0   4   2         4
                38.57          4.32        2.3342    2   0   2         4
                40.32          7.82        2.2370    0   3   3         4
                40.57          1.09        2.2237    0   5   1         4
                41.06         24.78        2.1982    2   3   1         8
                43.91         27.56        2.0617    0   0   4         2
                44.84         58.83        2.0213    2   4   0         4
                47.59          2.96        1.9106    1   1   4         8
                47.92          4.29        1.8982    1   5   2         8
                48.47          2.16        1.8780    1   4   3         8
                51.70          4.47        1.7682    0   5   3         4
                52.11          1.33        1.7553    2   3   3         8
                52.31          2.53        1.7488    2   5   1         8
                52.91          5.75        1.7305    1   3   4         8
                54.01          4.08        1.6977    3   1   2         8
                54.71          3.13        1.6777    0   4   4         4
                55.10          4.44        1.6667    2   0   4         4
                58.26          6.12        1.5836    1   0   5         4
                58.92          3.78        1.5676    3   3   2         8
                59.39          8.75        1.5561    3   0   3         4
                59.58         11.85        1.5516    3   4   1         8
                61.13          2.64        1.5160    0   3   5         4
                62.59          3.23        1.4842    1   5   4         8
                62.86          3.34        1.4783    1   7   2         8
                64.57         78.69        1.4434    2   4   4         8
                64.57         21.31        1.4432    0   8   0         2
                65.99         20.64        1.4158    4   0   0         2
                66.06          7.23        1.4144    0   7   3         4
                66.59          3.73        1.4044    2   7   1         8
                68.06          1.41        1.3775    3   5   2         8
                70.11          2.05        1.3422    0   5   5         4
                71.04          1.45        1.3269    1   1   6         8
                72.15          1.71        1.3092    3   3   4         8
                73.67          1.75        1.2858    2   8   0         4
                74.67          1.05        1.2711    4   4   0         4
                75.31          1.27        1.2619    1   3   6         8
                76.07          4.65        1.2512    4   1   3         8
                76.41          4.97        1.2465    1   8   3         8
                76.73          3.36        1.2421    3   0   5         4
                80.24          1.66        1.1963    4   3   3         8
                80.57          1.20        1.1923    3   5   4         8
                80.82          1.42        1.1893    3   7   2         8
                81.39          3.66        1.1823    0   8   4         4
                82.68          3.65        1.1671    4   0   4         4
                83.57          2.10        1.1570    2   9   1         8
                88.47          1.29        1.1051    4   5   3         8
                89.92          2.03        1.0910    2   8   4         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.