Magnesioferrite
      Boiocchi M, Caucia F, Merli M, Prella D, Ungaretti L
      European Journal of Mineralogy 13 (2001) 871-881
      Crystal-chemical reasons for the immiscibility of periclase and wustite
      under lithospheric P,T conditions
      Sample: after heating to 1100 deg C
      _database_code_amcsd 0006905

      CELL PARAMETERS:    8.3850   8.3850   8.3850   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    589.534
      Density (g/cm3):      4.477
      MAX. ABS. INTENSITY / VOLUME**2:      59.49970179    
      RIR:      4.327
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.33          8.12        4.8411    1   1   1         8
                30.15         30.47        2.9645    2   2   0        12
                35.51        100.00        2.5282    3   1   1        24
                37.14          3.71        2.4205    2   2   2         8
                43.16         24.35        2.0963    4   0   0         6
                53.54         10.18        1.7116    4   2   2        24
                57.08         27.52        1.6137    5   1   1        24
                57.08          5.78        1.6137    3   3   3         8
                62.68         47.16        1.4823    4   4   0        12
                71.11          3.68        1.3258    6   2   0        24
                74.15          8.90        1.2787    5   3   3        24
                75.16          2.57        1.2641    6   2   2        24
                79.13          3.12        1.2103    4   4   4         8
                86.95          4.25        1.1205    6   4   2        48
                89.85          5.98        1.0916    5   5   3        24
                89.85          8.14        1.0916    7   3   1        48
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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.