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 = 5.3 GPa
      _database_code_amcsd 0013220

      CELL PARAMETERS:    4.4760   4.4760   4.4760   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     89.675
      Density (g/cm3):      1.448
      MAX. ABS. INTENSITY / VOLUME**2:      38.49435025    
      RIR:      8.657
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.20        100.00        3.1650    1   1   0        12
                40.30         16.09        2.2380    2   0   0         6
                49.91         29.40        1.8273    2   1   1        24
                58.31          7.97        1.5825    2   2   0        12
                66.00          9.69        1.4154    3   1   0        24
                73.26          2.14        1.2921    2   2   2         8
                80.25          9.21        1.1963    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.