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 = 2.72 GPa, X = .00
      _database_code_amcsd 0002440

      CELL PARAMETERS:    5.6731  11.4114   8.2067   90.000   90.000   90.000
      SPACE GROUP: Imma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    531.285
      Density (g/cm3):      3.517
      MAX. ABS. INTENSITY / VOLUME**2:      7.835256901    
      RIR:      0.725
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.95         46.60        3.1921    1   1   2         8
                31.36         14.55        2.8528    0   4   0         2
                31.54         14.29        2.8365    2   0   0         2
                33.69         52.03        2.6602    0   1   3         4
                34.36         60.80        2.6099    2   1   1         8
                35.87         19.57        2.5033    1   3   2         8
                36.46         37.08        2.4641    1   0   3         4
                36.93         97.08        2.4340    1   4   1         8
                38.43          3.93        2.3424    0   4   2         4
                38.59          1.53        2.3333    2   0   2         4
                40.62         12.53        2.2209    0   3   3         4
                41.05          3.40        2.1988    0   5   1         4
                41.20         31.19        2.1913    2   3   1         8
                44.14         35.22        2.0517    0   0   4         2
                45.07         78.37        2.0115    2   4   0         4
                47.81          4.42        1.9024    1   1   4         8
                48.37          4.41        1.8816    1   5   2         8
                48.84          1.97        1.8648    1   4   3         8
                52.20          7.96        1.7525    0   5   3         4
                52.32          2.08        1.7487    2   3   3         8
                52.67          7.34        1.7378    2   5   1         8
                53.23          7.04        1.7207    1   3   4         8
                53.99          5.29        1.6983    3   1   2         8
                55.14          2.53        1.6657    0   4   4         4
                55.26          7.42        1.6624    2   0   4         4
                56.66          1.04        1.6246    0   1   5         4
                58.54          8.25        1.5767    1   0   5         4
                59.01          4.39        1.5653    3   3   2         8
                59.42         10.38        1.5555    3   0   3         4
                59.74         15.49        1.5479    3   4   1         8
                61.53          3.94        1.5070    0   3   5         4
                63.10          3.63        1.4734    1   5   4         8
                63.56          4.51        1.4637    1   7   2         8
                64.92        100.00        1.4363    2   4   4         8
                65.43         26.70        1.4264    0   8   0         2
                65.85         27.11        1.4183    4   0   0         2
                66.30          1.27        1.4098    2   1   5         8
                66.80          8.08        1.4004    0   7   3         4
                67.21          4.79        1.3929    2   7   1         8
                67.91          1.13        1.3803    3   1   4         8
                68.36          1.57        1.3723    3   5   2         8
                70.70          3.65        1.3325    0   5   5         4
                71.42          1.78        1.3207    1   1   6         8
                72.36          1.99        1.3060    3   3   4         8
                74.45          1.69        1.2744    2   8   0         4
                74.75          1.83        1.2700    4   4   0         4
                75.78          1.81        1.2552    1   3   6         8
                76.05          7.16        1.2515    4   1   3         8
                76.92          4.35        1.2395    3   0   5         4
                77.29          6.12        1.2345    1   8   3         8
                80.32          2.76        1.1953    4   3   3         8
                80.97          1.31        1.1875    3   5   4         8
                81.39          1.99        1.1824    3   7   2         8
                82.33          4.78        1.1712    0   8   4         4
                82.72          4.79        1.1667    4   0   4         4
                84.16          1.61        1.1504    0   9   3         4
                84.53          4.04        1.1462    2   9   1         8
                88.67          1.16        1.1031    3   1   6         8
                88.74          2.57        1.1025    4   5   3         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.