Rubidium
      Barrett C S
      Acta Crystallographica 9 (1956) 671-677
      X-ray study of the alkali metals at low temperatures
      Locality: synthetic
      Sample: at T = 78 K
      Note: lattice parameters are average of 2 values
      _database_code_amcsd 0009191

      CELL PARAMETERS:    5.6050   5.6050   5.6050   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    176.087
      Density (g/cm3):      1.612
      MAX. ABS. INTENSITY / VOLUME**2:      79.01115825    
      RIR:     15.962
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.43        100.00        3.9633    1   1   0        12
                31.93         19.43        2.8025    2   0   0         6
                39.38         41.38        2.2882    2   1   1        24
                45.79         12.64        1.9817    2   2   0        12
                51.56         16.78        1.7725    3   1   0        24
                56.91          3.93        1.6180    2   2   2         8
                61.95         17.30        1.4980    3   2   1        48
                66.76          1.64        1.4013    4   0   0         6
                71.40          5.16        1.3211    4   1   1        24
                71.40          2.58        1.3211    3   3   0        12
                75.92          4.16        1.2533    4   2   0        24
                80.35          3.43        1.1950    3   3   2        24
                84.72          2.91        1.1441    4   2   2        24
                89.07          2.52        1.0992    5   1   0        24
                89.07          5.04        1.0992    4   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.