Spinel
      Lucchesi S, Amoriello M, Della Giusta A
      European Journal of Mineralogy 10 (1998) 473-482
      Crystal chemistry of spinels from xenoliths of the
      Alban Hills volcanic region
      Sample: SP263b
      Locality: xenoliths of the Alban Hills, Italy volcanic region
      _database_code_amcsd 0006740

      CELL PARAMETERS:    8.1093   8.1093   8.1093   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    533.274
      Density (g/cm3):      3.716
      MAX. ABS. INTENSITY / VOLUME**2:      23.44793407    
      RIR:      2.055
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.95         16.07        4.6819    1   1   1         8
                31.20         39.06        2.8671    2   2   0        12
                36.76        100.00        2.4450    3   1   1        24
                44.70         40.91        2.0273    4   0   0         6
                55.51         11.33        1.6553    4   2   2        24
                59.20          3.58        1.5606    3   3   3         8
                59.20         40.35        1.5606    5   1   1        24
                65.06         64.54        1.4335    4   4   0        12
                68.45          1.56        1.3707    5   3   1        48
                73.92          3.69        1.2822    6   2   0        24
                77.13         10.05        1.2367    5   3   3        24
                82.39          4.83        1.1705    4   4   4         8
                85.52          1.71        1.1355    5   5   1        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.