Cryolite
      Zhou Q, Kennedy B J
      Journal of Solid State Chemistry 177 (2004) 654-659
      High-temperature powder synchrotron diffraction studies of synthetic cryolite
      Na3AlF6
      Locality: synthetic
      Sample: T = room temperature
      Note: reported and calculated bond lengths disagree
      _database_code_amcsd 0014038

      CELL PARAMETERS:    5.3956   5.5821   7.7568   90.000   90.181   90.000
      SPACE GROUP: P2_1/n    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    233.624
      Density (g/cm3):      2.984
      MAX. ABS. INTENSITY / VOLUME**2:      4.525168306    
      RIR:      0.494
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.59         34.29        4.5308    0   1   1         4
                20.02          9.13        4.4359   -1   0   1         2
                20.08         24.33        4.4228    1   0   1         2
                22.92         43.95        3.8795    1   1   0         4
                22.93         16.80        3.8784    0   0   2         2
                25.65          8.21        3.4729   -1   1   1         4
                25.70          6.13        3.4666    1   1   1         4
                32.07         32.82        2.7910    0   2   0         2
                32.61         74.66        2.7459   -1   1   2         4
                32.69         63.74        2.7397    1   1   2         4
                33.21         21.63        2.6978    2   0   0         2
                36.24          7.70        2.4790    1   2   0         4
                37.01         32.51        2.4290    2   1   0         4
                38.09          8.23        2.3623   -1   2   1         4
                38.13         20.11        2.3604    1   2   1         4
                38.37          1.50        2.3461    0   1   3         4
                38.56         38.53        2.3346   -1   0   3         2
                38.66         23.75        2.3288    1   0   3         2
                38.82         14.99        2.3199   -2   1   1         4
                38.88         30.99        2.3161    2   1   1         4
                39.79         35.97        2.2654    0   2   2         4
                40.68         11.38        2.2180   -2   0   2         2
                40.80          8.31        2.2114    2   0   2         2
                41.95          8.19        2.1538   -1   1   3         4
                42.04         24.91        2.1493    1   1   3         4
                43.29         21.06        2.0902   -1   2   2         4
                43.35          9.66        2.0874    1   2   2         4
                43.93          5.60        2.0612   -2   1   2         4
                44.04          2.31        2.0560    2   1   2         4
                46.84        100.00        1.9398    2   2   0         4
                46.85         51.74        1.9392    0   0   4         2
                47.96          9.69        1.8968    0   2   3         4
                48.34          6.12        1.8828   -2   2   1         4
                48.40          4.40        1.8808    2   2   1         4
                51.00          1.38        1.7907   -1   2   3         4
                51.08          8.81        1.7881    1   2   3         4
                51.55          6.48        1.7728   -2   1   3         4
                51.99         12.29        1.7590    1   3   0         4
                52.25          4.70        1.7508    3   0   1         2
                52.71         15.40        1.7364   -2   2   2         4
                52.83          9.57        1.7330    1   1   4         4
                53.40         23.33        1.7159   -1   3   1         4
                53.42          8.98        1.7151    1   3   1         4
                54.71          2.55        1.6776    0   3   2         4
                54.96         10.50        1.6706    3   1   1         4
                57.51         19.36        1.6026   -1   3   2         4
                57.56          8.31        1.6014    1   3   2         4
                57.90         27.49        1.5925    0   2   4         4
                58.53          2.69        1.5770   -2   0   4         2
                58.72         23.27        1.5723    2   0   4         2
                58.91         43.49        1.5678   -3   1   2         4
                59.05         21.71        1.5644    3   1   2         4
                61.32          5.00        1.5118    3   2   0         4
                61.39          1.24        1.5103    0   3   3         4
                61.71          4.16        1.5032   -2   3   1         4
                62.10          2.54        1.4947    0   1   5         4
                62.21          1.29        1.4922   -1   0   5         2
                62.33          4.45        1.4897    1   0   5         2
                62.57          2.25        1.4846   -3   2   1         4
                63.99          1.06        1.4551   -1   3   3         4
                64.05          5.15        1.4537    1   3   3         4
                65.48          1.78        1.4255   -2   3   2         4
                65.48          2.94        1.4254    3   1   3         4
                65.57          2.99        1.4238    2   3   2         4
                67.07          6.94        1.3955    0   4   0         2
                68.29          1.08        1.3735    0   4   1         4
                68.32         14.19        1.3730   -2   2   4         4
                68.50         12.30        1.3699    2   2   4         4
                69.58          6.42        1.3511    1   4   0         4
                69.71          3.32        1.3489    4   0   0         2
                71.67          3.67        1.3168    2   3   3         4
                71.72          6.85        1.3159   -1   2   5         4
                71.90          1.77        1.3131    0   4   2         4
                72.03          2.10        1.3112    4   1   0         4
                72.15          2.28        1.3091   -2   1   5         4
                72.51          2.03        1.3036    3   2   3         4
                72.51          2.57        1.3035   -1   3   4         4
                72.60          1.20        1.3022    1   3   4         4
                73.17          1.58        1.2935   -4   1   1         4
                74.39          2.02        1.2753   -4   0   2         2
                76.64          2.62        1.2433   -4   1   2         4
                76.92          3.44        1.2395    2   4   0         4
                77.80          2.38        1.2276   -3   3   2         4
                77.82          7.06        1.2273   -1   1   6         4
                77.93          4.32        1.2259    3   3   2         4
                77.95          4.97        1.2257    1   1   6         4
                78.81          3.01        1.2145    4   2   0         4
                78.93          3.73        1.2129   -2   2   5         4
                80.00          1.18        1.1994    4   2   1         4
                81.57          1.61        1.1802    2   4   2         4
                82.61          2.66        1.1679    4   1   3         4
                83.05          4.66        1.1629    1   3   5         4
                83.47          1.53        1.1581    4   2   2         4
                83.70          3.23        1.1555    3   3   3         4
                84.08          1.20        1.1513   -3   1   5         4
                84.39          2.21        1.1478    3   1   5         4
                85.78          2.96        1.1327    0   4   4         4
                87.16          3.47        1.1183   -2   4   3         4
                87.28          1.32        1.1171    2   4   3         4
                88.08          1.67        1.1090   -4   0   4         2
                88.08          1.40        1.1090   -1   4   4         4
                88.41          1.77        1.1057    4   0   4         2
                88.94          1.75        1.1005   -4   2   3         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.