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: SP178c
      Locality: xenoliths of the Alban Hills, Italy volcanic region
      _database_code_amcsd 0006732

      CELL PARAMETERS:    8.1088   8.1088   8.1088   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    533.175
      Density (g/cm3):      3.699
      MAX. ABS. INTENSITY / VOLUME**2:      23.05345285    
      RIR:      2.029
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96         17.80        4.6816    1   1   1         8
                31.20         37.93        2.8669    2   2   0        12
                36.76        100.00        2.4449    3   1   1        24
                44.70         42.76        2.0272    4   0   0         6
                55.52         11.08        1.6552    4   2   2        24
                59.21          3.59        1.5605    3   3   3         8
                59.21         40.78        1.5605    5   1   1        24
                65.07         65.85        1.4334    4   4   0        12
                68.45          1.76        1.3706    5   3   1        48
                73.92          3.63        1.2821    6   2   0        24
                77.13         10.20        1.2366    5   3   3        24
                78.19          1.04        1.2224    6   2   2        24
                82.40          5.13        1.1704    4   4   4         8
                85.52          1.84        1.1355    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.