Ni2SiO4
      Yamanaka T
      Physics and Chemistry of Minerals 13 (1986) 227-232
      Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
      temperature and heating duration
      Sample: Duration time: quenched
      _database_code_amcsd 0007414

      CELL PARAMETERS:    8.0356   8.0356   8.0356   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    518.866
      Density (g/cm3):      5.362
      MAX. ABS. INTENSITY / VOLUME**2:      79.18025522    
      RIR:      4.808
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.13         39.37        4.6394    1   1   1         8
                31.49          8.94        2.8410    2   2   0        12
                37.11        100.00        2.4228    3   1   1        24
                38.82         17.63        2.3197    2   2   2         8
                45.13         48.86        2.0089    4   0   0         6
                49.44         14.60        1.8435    3   3   1        24
                56.07          2.77        1.6403    4   2   2        24
                59.80          8.70        1.5465    3   3   3         8
                59.80         17.55        1.5465    5   1   1        24
                65.74         45.71        1.4205    4   4   0        12
                69.16          6.25        1.3583    5   3   1        48
                74.71          1.04        1.2705    6   2   0        24
                77.97          8.82        1.2254    5   3   3        24
                79.04          8.12        1.2114    6   2   2        24
                83.32          6.89        1.1598    4   4   4         8
                86.49          2.12        1.1252    7   1   1        24
                86.49          1.06        1.1252    5   5   1        24
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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.