Potassium
      Liu L
      Journal of Physics and Chemistry of Solids 47 (1986) 1067-1072
      Compression and polymorphism of potassium to 400 Kbar
      Locality: synthetic
      Sample: bcc at P = 7 GPa
      _database_code_amcsd 0013222

      CELL PARAMETERS:    4.3050   4.3050   4.3050   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     79.785
      Density (g/cm3):      1.627
      MAX. ABS. INTENSITY / VOLUME**2:      43.28181493    
      RIR:      8.661
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.34        100.00        3.0441    1   1   0        12
                41.97         15.66        2.1525    2   0   0         6
                52.03         28.11        1.7575    2   1   1        24
                60.86          7.54        1.5220    2   2   0        12
                68.98          9.13        1.3614    3   1   0        24
                76.68          2.03        1.2427    2   2   2         8
                84.14          8.83        1.1506    3   2   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.