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 IV
      _database_code_amcsd 0012171

      CELL PARAMETERS:    5.6090   5.6090   5.6090   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    176.464
      Density (g/cm3):      1.608
      MAX. ABS. INTENSITY / VOLUME**2:      78.81690503    
      RIR:     15.957
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.42        100.00        3.9662    1   1   0        12
                31.91         19.43        2.8045    2   0   0         6
                39.35         41.40        2.2899    2   1   1        24
                45.75         12.65        1.9831    2   2   0        12
                51.52         16.80        1.7737    3   1   0        24
                56.86          3.93        1.6192    2   2   2         8
                61.90         17.32        1.4991    3   2   1        48
                66.70          1.65        1.4023    4   0   0         6
                71.34          2.58        1.3221    3   3   0        12
                71.34          5.16        1.3221    4   1   1        24
                75.86          4.16        1.2542    4   2   0        24
                80.28          3.44        1.1958    3   3   2        24
                84.65          2.91        1.1449    4   2   2        24
                88.99          2.52        1.1000    5   1   0        24
                88.99          5.04        1.1000    4   3   1        48
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.