Rubidium
      Kelly F M, Pearson W B
      Canadian Journal of Physics 33 (1955) 17-24
      The rubidium transition at ~180 K
      Locality: synthetic
      Sample: at T = 77 K
      Note: specimen VI
      _database_code_amcsd 0012174

      CELL PARAMETERS:    5.6070   5.6070   5.6070   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    176.275
      Density (g/cm3):      1.610
      MAX. ABS. INTENSITY / VOLUME**2:      78.91397028    
      RIR:     15.960
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.42        100.00        3.9647    1   1   0        12
                31.92         19.43        2.8035    2   0   0         6
                39.36         41.39        2.2890    2   1   1        24
                45.77         12.65        1.9824    2   2   0        12
                51.54         16.79        1.7731    3   1   0        24
                56.89          3.93        1.6186    2   2   2         8
                61.92         17.31        1.4985    3   2   1        48
                66.73          1.65        1.4017    4   0   0         6
                71.37          2.58        1.3216    3   3   0        12
                71.37          5.16        1.3216    4   1   1        24
                75.89          4.16        1.2538    4   2   0        24
                80.32          3.44        1.1954    3   3   2        24
                84.69          2.91        1.1445    4   2   2        24
                89.03          2.52        1.0996    5   1   0        24
                89.03          5.04        1.0996    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.