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 0020857

      CELL PARAMETERS:    7.0007   6.9927   6.2413   90.000   90.000   90.000
      SPACE GROUP: Amma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    305.535
      Density (g/cm3):      2.959
      MAX. ABS. INTENSITY / VOLUME**2:      15.55770979    
      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          8.17        3.8771    1   1   1         8
                25.45        100.00        3.5004    2   0   0         2
                25.48         97.36        3.4964    0   2   0         2
                28.60          4.26        3.1206    0   0   2         2
                31.38         61.23        2.8503    1   0   2         4
                31.99          5.99        2.7979    2   1   1         8
                36.32         12.49        2.4737    2   2   0         4
                38.65          2.70        2.3293    2   0   2         4
                38.67         36.85        2.3282    0   2   2         4
                40.85         38.85        2.2092    1   2   2         8
                41.35         12.41        2.1836    0   3   1         4
                43.37         12.98        2.0862    3   1   1         8
                45.49          9.21        1.9940    0   1   3         4
                46.87          6.89        1.9385    2   2   2         8
                48.73         28.25        1.8688    3   0   2         4
                49.18          6.18        1.8527    2   3   1         8
                52.27         10.88        1.7502    4   0   0         2
                52.33         11.35        1.7482    0   4   0         2
                55.78         27.77        1.6482    3   2   2         8
                57.83          5.15        1.5944    3   3   1         8
                59.02          3.60        1.5650    4   2   0         4
                59.07          4.05        1.5640    2   4   0         4
                60.72          5.50        1.5252    0   4   2         4
                60.82          1.05        1.5229    1   0   4         4
                61.13          1.04        1.5160    3   1   3         8
                61.16          1.23        1.5153    1   3   3         8
                62.31         10.03        1.4902    1   4   2         8
                65.50          1.49        1.4251    2   0   4         4
                65.51          4.03        1.4249    0   2   4         4
                65.82          1.97        1.4189    2   3   3         8
                66.88          2.31        1.3990    4   2   2         8
                66.92          1.25        1.3982    2   4   2         8
                67.03          4.25        1.3962    1   2   4         8
                68.74          1.55        1.3657    4   3   1         8
                71.49          9.56        1.3197    2   2   4         8
                72.93          3.30        1.2971    3   0   4         4
                74.24          3.36        1.2775    5   0   2         4
                74.29         10.27        1.2767    3   4   2         8
                77.11          2.06        1.2369    4   4   0         4
                78.68          8.03        1.2161    3   2   4         8
                79.96          4.16        1.1999    5   2   2         8
                82.71          4.24        1.1668    6   0   0         2
                82.82          4.18        1.1655    0   6   0         2
                82.94          1.57        1.1641    0   4   4         4
                84.34          1.93        1.1483    1   4   4         8
                88.30          3.38        1.1068    6   2   0         4
                88.40          3.38        1.1058    2   6   0         4
                88.48          4.78        1.1050    4   2   4         8
                88.52          4.29        1.1046    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.