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: T = 600 C
      _database_code_amcsd 0007402

      CELL PARAMETERS:    8.0867   8.0867   8.0867   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    528.828
      Density (g/cm3):      5.261
      MAX. ABS. INTENSITY / VOLUME**2:      78.51683487    
      RIR:      4.859
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.01         38.65        4.6689    1   1   1         8
                31.29          8.98        2.8591    2   2   0        12
                36.86        100.00        2.4382    3   1   1        24
                38.57         17.50        2.3344    2   2   2         8
                44.83         48.92        2.0217    4   0   0         6
                49.11         14.62        1.8552    3   3   1        24
                55.68          2.86        1.6507    4   2   2        24
                59.39          8.89        1.5563    3   3   3         8
                59.39         17.82        1.5563    5   1   1        24
                65.27         46.75        1.4295    4   4   0        12
                68.66          6.24        1.3669    5   3   1        48
                74.16          1.11        1.2786    6   2   0        24
                77.38          9.11        1.2332    5   3   3        24
                78.45          8.26        1.2191    6   2   2        24
                82.67          7.01        1.1672    4   4   4         8
                85.81          1.04        1.1324    5   5   1        24
                85.81          2.13        1.1324    7   1   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.