Ice IV
      Engelhardt H, Kamb B
      Journal of Chemical Physics 75 (1981) 5887-5899
      Structure of ice IV, a metastable high-pressure phase
      Note: T = 110 K, synthesized at 4-5.5 kb
      Locality: synthetic
      _database_code_amcsd 0018368

      CELL PARAMETERS:    7.6000   7.6000   7.6000   70.100   70.100   70.100
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    375.394
      Density (g/cm3):      1.275
      MAX. ABS. INTENSITY / VOLUME**2:      2.730714915    
      RIR:      0.697
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.66         29.44        5.6585    1   1   0         6
                23.95          4.20        3.7156    2   1   1         6
                25.73          7.11        3.4628    2   1   0        12
                25.78          4.43        3.4560    2   0   0         6
                31.45         28.15        2.8443    2   2   2         2
                31.62        100.00        2.8292    2   2   0         6
                31.75         91.54        2.8181    0  -1   2        12
                33.06         84.50        2.7094    2  -1   1        12
                35.63         20.49        2.5199    1  -2   1         6
                37.75         96.36        2.3830    3   2   1        12
                37.90          3.08        2.3741    3   1   0        12
                41.20         28.89        2.1909    3   2   0        12
                41.37         33.39        2.1823    0  -2   2         6
                43.49         24.02        2.0810    2  -2   1        12
                44.11          2.94        2.0531    3   3   2         6
                44.50          2.43        2.0361    0  -1   3        12
                48.25          1.15        1.8862    3   3   0         6
                48.25          5.52        1.8862    4   1   1         6
                49.12         11.01        1.8546    4   2   1        12
                51.13         22.23        1.7865    4   1   0        12
                52.63          3.22        1.7392    4   3   2        12
                52.99          5.86        1.7280    4   0   0         6
                53.95          1.24        1.6996    3  -2   1        12
                55.17          3.67        1.6647    4   3   3         6
                55.72          4.10        1.6497    2  -3   1        12
                57.35          9.36        1.6066    4  -1   1        12
                58.02          2.15        1.5897    4   3   0        12
                58.23          9.47        1.5844    3  -2   2        12
                58.23          3.99        1.5844    0  -1   4        12
                59.42          2.90        1.5554    4   4   2         6
                62.07          1.73        1.4953    5   2   1        12
                63.49          4.84        1.4651    5   3   2        12
                65.40          1.18        1.4270    5   1   0        12
                65.40          4.57        1.4270    4  -1   3        12
                65.50          1.05        1.4251    3  -2   3         6
                65.65          3.70        1.4222    4   4   4         2
                66.04          1.56        1.4146    4   4   0         6
                66.34          4.34        1.4090    0  -2   4        12
                68.86          2.03        1.3634    5   4   2        12
                69.44          3.04        1.3535   -1  -2   4        12
                69.90          2.30        1.3457    5   3   0        12
                70.19          3.69        1.3409    3  -3   2        12
                71.25          2.69        1.3236    5   4   1        12
                73.05          5.28        1.2953    5  -1   2        12
                75.33          2.02        1.2616    4  -2   3        12
                76.36          4.20        1.2471    6   3   2        12
                76.55          3.32        1.2446    5   4   0        12
                76.92          1.98        1.2395    0  -3   4        12
                76.99          1.43        1.2385    5   5   2         6
                79.11          4.61        1.2105    3  -4   1        12
                80.64          2.56        1.1915    6   4   2        12
                81.07          1.17        1.1862    6   1   0        12
                81.25          1.45        1.1840    4  -3   2        12
                81.25          1.50        1.1840    0  -2   5        12
                84.01          2.40        1.1520    6   0   0         6
                87.69          1.07        1.1129    4  -3   3        12
                88.25          1.72        1.1072    6  -1   2        12
                89.45          1.07        1.0955    6   4   0        12
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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.