Sulfur
      Luo H, Greene R G, Ruoff A L
      Physical Review Letters 71 (1993) 2943-2946
      Beta-Po phase of sulfur at 162 GPa: X-ray diffraction study to 212 GPa
      Locality: synthetic
      Sample: at P = 206.5 GPa
      Note: this is known as the Beta-Po phase of sulfur, stable above 162 GPa
      _database_code_amcsd 0015277

      CELL PARAMETERS:    3.2770   3.2770   2.5840   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     24.031
      Density (g/cm3):      6.646
      MAX. ABS. INTENSITY / VOLUME**2:      74.85563218    
      RIR:      3.667
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                47.59        100.00        1.9107    1   0   1         6
                56.13         55.85        1.6385    1   1   0         6
                76.61         19.41        1.2438    0   2   1         6
                81.93         15.91        1.1759    0   1   2         6
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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.