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: SP264i
      Locality: xenoliths of the Alban Hills, Italy volcanic region
      _database_code_amcsd 0006743

      CELL PARAMETERS:    8.1141   8.1141   8.1141   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    534.221
      Density (g/cm3):      3.750
      MAX. ABS. INTENSITY / VOLUME**2:      24.45559874    
      RIR:      2.123
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.94         14.87        4.6847    1   1   1         8
                31.18         39.95        2.8688    2   2   0        12
                36.74        100.00        2.4465    3   1   1        24
                44.67         38.89        2.0285    4   0   0         6
                55.48         11.54        1.6563    4   2   2        24
                59.17          3.58        1.5616    3   3   3         8
                59.17         40.31        1.5616    5   1   1        24
                65.02         63.43        1.4344    4   4   0        12
                68.40          1.45        1.3715    5   3   1        48
                73.87          3.74        1.2830    6   2   0        24
                77.07         10.05        1.2374    5   3   3        24
                78.13          1.05        1.2232    6   2   2        24
                82.33          4.61        1.1712    4   4   4         8
                85.45          1.66        1.1362    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.