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 = .26 GPa
      _database_code_amcsd 0013215

      CELL PARAMETERS:    5.2860   5.2860   5.2860   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    147.700
      Density (g/cm3):      0.879
      MAX. ABS. INTENSITY / VOLUME**2:      22.77410196    
      RIR:      8.436
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.81        100.00        3.7378    1   1   0        12
                33.92         17.78        2.6430    2   0   0         6
                41.86         35.08        2.1580    2   1   1        24
                48.72         10.04        1.8689    2   2   0        12
                54.93         12.60        1.6716    3   1   0        24
                60.69          2.82        1.5259    2   2   2         8
                66.14         11.97        1.4127    3   2   1        48
                71.38          1.11        1.3215    4   0   0         6
                76.45          3.41        1.2459    4   1   1        24
                76.45          1.71        1.2459    3   3   0        12
                81.42          2.73        1.1820    4   2   0        24
                86.32          2.26        1.1270    3   3   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.