Bi0.5 F2 Rb0.5
      Soubeyroux J, Reau J, Matar S, Villeneuve G, Hagenmueller P
      Solid State Ionics 6 (1982) 103-111
      Etude par diffraction neutronique des solutions solides K1-x Bix F1+2x
      et Rb1-x Bix F1+2x
      _cod_database_code 1008624
      _database_code_amcsd 0016515

      CELL PARAMETERS:    6.0548   6.0548   6.0548   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    221.973
      Density (g/cm3):      5.530
      MAX. ABS. INTENSITY / VOLUME**2:      251.1708812    
      RIR:     14.788
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.48        100.00        3.4957    1   1   1         8
                29.51         35.00        3.0274    2   0   0         6
                42.22         54.55        2.1407    2   2   0        12
                49.96         45.61        1.8256    3   1   1        24
                52.34          8.43        1.7479    2   2   2         8
                61.23          7.33        1.5137    4   0   0         6
                67.42         15.80        1.3891    3   3   1        24
                69.42          9.41        1.3539    4   2   0        24
                77.18         13.11        1.2359    4   2   2        24
                82.84          7.78        1.1652    5   1   1        24
                82.84          2.41        1.1652    3   3   3         8
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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.