RbI
      Ahtee M
      Annales Academiae Scientiarum Fennicae Series A6: Physica 313 (1969) 1-11
      Lattice constants of some binary alkali halide solid solutions.
      _database_code_amcsd 0011999

      CELL PARAMETERS:    7.3291   7.3291   7.3291   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    393.688
      Density (g/cm3):      3.583
      MAX. ABS. INTENSITY / VOLUME**2:      156.0967835    
      RIR:     14.187
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.99          6.69        4.2315    1   1   1         8
                24.29        100.00        3.6646    2   0   0         6
                34.62         75.71        2.5912    2   2   0        12
                40.84          3.45        2.2098    3   1   1        24
                42.74         26.54        2.1157    2   2   2         8
                49.76         12.10        1.8323    4   0   0         6
                54.58          1.52        1.6814    3   3   1        24
                56.12         32.10        1.6388    4   2   0        24
                62.04         22.61        1.4960    4   2   2        24
                73.03          6.41        1.2956    4   4   0        12
                76.97          1.11        1.2388    5   3   1        48
                78.27         10.19        1.2215    4   4   2        24
                78.27          2.55        1.2215    6   0   0         6
                83.40          8.38        1.1588    6   2   0        24
                88.49          7.10        1.1049    6   2   2        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.