Coccinite
      Schwarzenbach D, Birkedal H, Hostettler M, Fischer P
      Acta Crystallographica B63 (2007) 828-835
      Neutron diffraction investigation of the temperature dependence of
      crystal structure and thermal motions of red HgI2
      Note: T = 293 K, powder neutron data
      Locality: synthetic, Fluka 83379
      _database_code_amcsd 0019552

      CELL PARAMETERS:    4.3700   4.3700  12.4370   90.000   90.000   90.000
      SPACE GROUP: P4_2/nmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    237.508
      Density (g/cm3):      6.353
      MAX. ABS. INTENSITY / VOLUME**2:      171.1613643    
      RIR:      8.773
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.24         34.66        6.2185    0   0   2         2
                21.55         90.39        4.1229    1   0   1         8
                24.90        100.00        3.5754    1   0   2         8
                28.89          1.69        3.0901    1   1   0         4
                29.70         38.11        3.0076    1   0   3         8
                32.35         45.36        2.7672    1   1   2         8
                35.43          4.87        2.5334    1   0   4         8
                41.19         65.80        2.1918    1   1   4         8
                41.32         35.19        2.1850    2   0   0         4
                41.79         12.95        2.1617    1   0   5         8
                43.67          7.85        2.0728    0   0   6         2
                43.92          6.30        2.0614    2   0   2         8
                47.07         16.87        1.9306    2   1   1        16
                48.62          9.03        1.8728    1   0   6         8
                48.85         23.81        1.8644    2   1   2        16
                51.71         11.76        1.7677    2   1   3        16
                55.54          2.00        1.6546    2   1   4        16
                55.86          4.31        1.6459    1   0   7         8
                59.46          3.23        1.5546    0   0   8         2
                59.86          8.69        1.5450    2   2   0         4
                60.22          6.30        1.5367    2   1   5        16
                61.68          8.22        1.5038    2   0   6         8
                61.88          1.60        1.4994    2   2   2         8
                63.52          2.03        1.4647    1   0   8         8
                64.40          2.36        1.4468    3   0   1         8
                65.66          5.55        1.4220    2   1   6        16
                65.85          3.68        1.4183    3   0   2         8
                68.24          1.83        1.3743    3   0   3         8
                69.71          5.19        1.3490    3   1   2        16
                71.62          1.47        1.3176    1   0   9         8
                71.81          2.92        1.3146    2   1   7        16
                74.98          4.82        1.2667    2   0   8         8
                75.25         12.20        1.2628    3   1   4        16
                75.66          1.16        1.2570    3   0   5         8
                76.97          3.19        1.2388    2   2   6         8
                78.64          1.69        1.2166    2   1   8        16
                79.45          1.87        1.2063    3   2   1        16
                80.61          1.20        1.1918    3   0   6         8
                80.79          3.19        1.1896    3   2   2        16
                83.01          1.55        1.1633    3   2   3        16
                83.85          3.31        1.1538    1   1  10         8
                86.20          1.32        1.1283    2   1   9        16
                89.41          2.37        1.0959    2   2   8         8
                89.76          1.63        1.0925    4   0   0         4
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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.