Cryolite
      Hawthorne F C, Ferguson R B
      The Canadian Mineralogist 13 (1975) 377-382
      Refinement of the crystal structure of cryolite
      _database_code_amcsd 0005118

      CELL PARAMETERS:    5.4024   5.5959   7.7564   90.000   90.278   90.000
      SPACE GROUP: P2_1/n    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    234.483
      Density (g/cm3):      2.973
      MAX. ABS. INTENSITY / VOLUME**2:      4.407953208    
      RIR:      0.483
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.56         43.71        4.5381    0   1   1         4
                19.98         10.29        4.4431   -1   0   1         2
                20.08         24.46        4.4230    1   0   1         2
                22.88         47.74        3.8867    1   1   0         4
                22.93         18.50        3.8782    0   0   2         2
                25.60          8.43        3.4797   -1   1   1         4
                25.67          6.34        3.4700    1   1   1         4
                31.99         34.84        2.7980    0   2   0         2
                32.56         75.85        2.7501   -1   1   2         4
                32.68         68.90        2.7405    1   1   2         4
                33.17         23.77        2.7012    2   0   0         2
                36.15          7.44        2.4845    1   2   0         4
                36.95         31.75        2.4326    2   1   0         4
                38.01          7.92        2.3676   -1   2   1         4
                38.06         19.06        2.3646    1   2   1         4
                38.53         35.34        2.3365   -1   0   3         2
                38.68         23.13        2.3277    1   0   3         2
                38.75         13.71        2.3240   -2   1   1         4
                38.85         29.42        2.3182    2   1   1         4
                39.72         34.09        2.2691    0   2   2         4
                40.61         11.68        2.2216   -2   0   2         2
                40.80          8.24        2.2115    2   0   2         2
                41.90          7.66        2.1561   -1   1   3         4
                42.04         25.41        2.1492    1   1   3         4
                43.20         19.55        2.0941   -1   2   2         4
                43.29          9.50        2.0899    1   2   2         4
                43.85          5.62        2.0648   -2   1   2         4
                44.03          2.56        2.0567    2   1   2         4
                46.74        100.00        1.9433    2   2   0         4
                46.85         53.68        1.9391    0   0   4         2
                47.91          9.29        1.8989    0   2   3         4
                48.24          6.87        1.8866   -2   2   1         4
                48.32          3.81        1.8835    2   2   1         4
                50.92          1.45        1.7934   -1   2   3         4
                51.04          7.45        1.7894    1   2   3         4
                51.47          6.44        1.7755   -2   1   3         4
                51.86         12.36        1.7632    1   3   0         4
                52.20          4.02        1.7523    3   0   1         2
                52.60         15.46        1.7398   -2   2   2         4
                52.84          9.86        1.7327    1   1   4         4
                53.26         24.87        1.7199   -1   3   1         4
                53.30          7.94        1.7187    1   3   1         4
                54.60          2.72        1.6810    0   3   2         4
                54.91         10.66        1.6722    3   1   1         4
                57.37         19.92        1.6060   -1   3   2         4
                57.45          7.81        1.6041    1   3   2         4
                57.86         27.19        1.5938    0   2   4         4
                58.45          2.86        1.5789   -2   0   4         2
                58.75         22.62        1.5716    2   0   4         2
                58.79         43.06        1.5706   -3   1   2         4
                59.01         21.67        1.5652    3   1   2         4
                61.21          4.81        1.5143    3   2   0         4
                61.28          1.28        1.5127    0   3   3         4
                61.56          5.19        1.5065   -2   3   1         4
                62.09          2.93        1.4949    0   1   5         4
                62.18          1.18        1.4929   -1   0   5         2
                62.36          4.36        1.4891    1   0   5         2
                62.44          2.69        1.4873   -3   2   1         4
                63.96          5.16        1.4556    1   3   3         4
                65.32          1.40        1.4285   -2   3   2         4
                65.46          2.86        1.4258    2   3   2         4
                65.47          2.67        1.4257    3   1   3         4
                66.88          6.89        1.3990    0   4   0         2
                68.10          1.12        1.3768    0   4   1         4
                68.20         15.13        1.3750   -2   2   4         4
                68.47         12.65        1.3702    2   2   4         4
                69.39          5.14        1.3543    1   4   0         4
                69.61          3.79        1.3506    4   0   0         2
                71.58          3.65        1.3182    2   3   3         4
                71.65          6.56        1.3172   -1   2   5         4
                71.72          1.89        1.3160    0   4   2         4
                71.92          1.86        1.3129    4   1   0         4
                72.06          2.31        1.3105   -2   1   5         4
                72.38          3.15        1.3055   -1   3   4         4
                72.46          2.02        1.3043    3   2   3         4
                72.52          1.17        1.3035    1   3   4         4
                73.04          1.89        1.2955   -4   1   1         4
                74.24          1.92        1.2774   -4   0   2         2
                76.49          2.35        1.2453   -4   1   2         4
                76.72          3.89        1.2423    2   4   0         4
                77.62          2.77        1.2301   -3   3   2         4
                77.78          6.96        1.2279   -1   1   6         4
                77.81          4.67        1.2275    3   3   2         4
                77.97          5.67        1.2254    1   1   6         4
                78.67          3.60        1.2163    4   2   0         4
                78.81          3.45        1.2144   -2   2   5         4
                79.88          1.21        1.2008    4   2   1         4
                81.39          2.04        1.1823    2   4   2         4
                82.57          2.65        1.1684    4   1   3         4
                82.97          4.29        1.1637    1   3   5         4
                83.31          1.01        1.1599   -3   3   3         4
                83.38          1.54        1.1591    4   2   2         4
                83.60          3.08        1.1567    3   3   3         4
                83.93          1.04        1.1529   -3   1   5         4
                84.41          2.11        1.1476    3   1   5         4
                85.61          2.96        1.1345    0   4   4         4
                86.93          3.11        1.1207   -2   4   3         4
                87.12          1.14        1.1187    2   4   3         4
                87.88          1.19        1.1109   -1   4   4         4
                87.90          1.91        1.1108   -4   0   4         2
                88.40          2.14        1.1057    4   0   4         2
                88.74          1.76        1.1024   -4   2   3         4
                89.41          1.28        1.0959    1   5   0         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.