O Sr
      Gerlach W
      Zeitschrift fur Physik 9 (1922) 184-192
      Die Gitterstruktur der Erdalkalioxyde.
      _cod_database_code 1011328
      _database_code_amcsd 0018170

      CELL PARAMETERS:    5.1040   5.1040   5.1040   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    132.963
      Density (g/cm3):      5.176
      MAX. ABS. INTENSITY / VOLUME**2:      120.1112639    
      RIR:      7.557
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                30.33         91.81        2.9468    1   1   1         8
                35.17        100.00        2.5520    2   0   0         6
                50.58         60.02        1.8045    2   2   0        12
                60.13         33.31        1.5389    3   1   1        24
                63.10         17.60        1.4734    2   2   2         8
                74.34          7.15        1.2760    4   0   0         6
                82.35         11.40        1.1709    3   3   1        24
                84.98         18.17        1.1413    4   2   0        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.