Calomel
      Wyckoff R W G
      Crystal Structures 1 (1963) 85-237
      Second edition. Interscience Publishers, New York, New York
      _database_code_amcsd 0011656

      CELL PARAMETERS:    4.4780   4.4780  10.9100   90.000   90.000   90.000
      SPACE GROUP: I4/mmm    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    218.773
      Density (g/cm3):      7.165
      MAX. ABS. INTENSITY / VOLUME**2:      318.2619495    
      RIR:     14.462
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.45        100.00        4.1426    1   0   1         8
                28.18         89.02        3.1664    1   1   0         4
                31.70         15.00        2.8230    1   0   3         8
                32.84         26.06        2.7275    0   0   4         2
                40.28         32.43        2.2390    2   0   0         4
                43.81         44.70        2.0665    1   1   4         8
                46.08         26.71        1.9697    2   1   1        16
                46.29         24.71        1.9615    1   0   5         8
                52.14          7.59        1.7542    2   1   3        16
                52.91         24.44        1.7306    2   0   4         8
                58.28          9.91        1.5832    2   2   0         4
                62.84          4.96        1.4789    3   0   1         8
                63.00         18.10        1.4754    2   1   5        16
                65.97         13.04        1.4161    3   1   0         8
                67.87          1.63        1.3809    3   0   3         8
                68.53         10.28        1.3693    2   2   4         8
                68.85          1.81        1.3637    0   0   8         2
                75.67         14.90        1.2568    3   1   4        16
                75.98          5.28        1.2525    1   1   8         8
                77.32          5.07        1.2340    3   2   1        16
                77.48          4.61        1.2320    3   0   5         8
                81.98          1.82        1.1753    3   2   3        16
                82.42          5.57        1.1701    1   0   9         8
                82.89          4.08        1.1647    2   0   8         8
                87.04          2.79        1.1195    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.