Anhydrite
      Antao S
      Powder Diffraction 26 (2011) 326-330
      Crystal-structure analysis of four mineral samples of anhydrite, Ca(SO4),
      using synchrotron high-resolution powder X-ray diffraction data
      _database_code_amcsd 0020858

      CELL PARAMETERS:    7.0014   6.9934   6.2417   90.000   90.000   90.000
      SPACE GROUP: Amma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    305.614
      Density (g/cm3):      2.958
      MAX. ABS. INTENSITY / VOLUME**2:      15.55602656    
      RIR:      1.712
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.94          7.99        3.8774    1   1   1         8
                25.44        100.00        3.5007    2   0   0         2
                25.47         98.12        3.4967    0   2   0         2
                28.60          4.12        3.1209    0   0   2         2
                31.38         60.59        2.8505    1   0   2         4
                31.98          6.23        2.7982    2   1   1         8
                36.31         12.84        2.4739    2   2   0         4
                38.65          2.65        2.3295    2   0   2         4
                38.67         35.95        2.3284    0   2   2         4
                40.84         38.96        2.2094    1   2   2         8
                41.34         12.44        2.1838    0   3   1         4
                43.37         12.90        2.0864    3   1   1         8
                45.48          9.39        1.9942    0   1   3         4
                46.86          6.75        1.9387    2   2   2         8
                48.72         28.19        1.8690    3   0   2         4
                49.17          6.13        1.8528    2   3   1         8
                52.26         10.83        1.7503    4   0   0         2
                52.33         11.07        1.7483    0   4   0         2
                55.77         27.94        1.6483    3   2   2         8
                57.82          5.07        1.5946    3   3   1         8
                59.02          3.67        1.5652    4   2   0         4
                59.06          3.95        1.5641    2   4   0         4
                60.72          5.52        1.5253    0   4   2         4
                60.82          1.07        1.5231    1   0   4         4
                61.16          1.13        1.5154    1   3   3         8
                62.30          9.96        1.4903    1   4   2         8
                65.49          1.47        1.4252    2   0   4         4
                65.50          4.08        1.4250    0   2   4         4
                65.81          1.94        1.4190    2   3   3         8
                66.87          2.25        1.3991    4   2   2         8
                66.91          1.34        1.3983    2   4   2         8
                67.02          4.14        1.3963    1   2   4         8
                68.73          1.53        1.3658    4   3   1         8
                71.48          9.38        1.3198    2   2   4         8
                72.93          3.30        1.2972    3   0   4         4
                74.23          3.33        1.2776    5   0   2         4
                74.28         10.22        1.2768    3   4   2         8
                77.10          2.01        1.2370    4   4   0         4
                78.67          7.86        1.2162    3   2   4         8
                79.95          4.17        1.2000    5   2   2         8
                82.70          4.17        1.1669    6   0   0         2
                82.82          4.13        1.1656    0   6   0         2
                82.94          1.64        1.1642    0   4   4         4
                84.33          1.93        1.1484    1   4   4         8
                88.29          3.36        1.1069    6   2   0         4
                88.39          3.38        1.1059    2   6   0         4
                88.47          4.69        1.1051    4   2   4         8
                88.51          4.31        1.1047    2   4   4         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.