Gypsum
      Comodi P, Nazzareni S, Zanazzi P F, Speziale S
      American Mineralogist 93 (2008) 1530-1537
      High-pressure behavior of gypsum: A single-crystal X-ray study
      Locality: Valle di Caramanico, Abruzzo, Italy
      Note: P = 3.15 GPa
      _database_code_amcsd 0004657

      CELL PARAMETERS:    6.1620  14.9650   5.5800   90.000  115.380   90.000
      SPACE GROUP: C2/c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    464.894
      Density (g/cm3):      2.521
      MAX. ABS. INTENSITY / VOLUME**2:      12.68130380    
      RIR:      1.638
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.83         62.68        7.4825    0   2   0         2
                21.25        100.00        4.1810    0   2   1         4
                23.78          8.75        3.7413    0   4   0         2
                23.95          1.81        3.7152    1   3   0         4
                29.16          4.96        3.0626    1   1   1         4
                29.74         71.67        3.0044    0   4   1         4
                31.66         48.75        2.8264   -2   2   1         4
                32.16          1.21        2.7836    2   0   0         2
                32.66         13.13        2.7418   -1   1   2         4
                34.37         41.78        2.6089    2   2   0         4
                35.07          6.16        2.5591   -1   5   1         4
                36.41         15.17        2.4673   -2   0   2         2
                36.92          2.39        2.4344   -1   3   2         4
                37.66          8.85        2.3888    0   2   2         4
                38.05          2.63        2.3652   -2   4   1         4
                41.76         19.77        2.1628    1   5   1         4
                43.28          1.85        2.0905    0   4   2         4
                43.96         17.89        2.0597   -2   4   2         4
                44.40          5.72        2.0404   -1   5   2         4
                44.63          4.85        2.0305   -3   1   1         4
                45.09          5.04        2.0107    2   2   1         4
                45.45          1.09        1.9958    1   7   0         4
                45.84          6.74        1.9795    1   1   2         4
                46.28          4.82        1.9617   -1   7   1         4
                47.13          5.23        1.9282   -3   1   2         4
                48.68          2.00        1.8706    0   8   0         2
                49.04         17.30        1.8576    2   6   0         4
                49.88          2.86        1.8282   -1   1   3         4
                50.04         10.83        1.8229    2   4   1         4
                51.52          4.13        1.7740   -2   2   3         4
                51.55         15.59        1.7730    0   6   2         4
                52.14          8.05        1.7541   -2   6   2         4
                52.15          1.64        1.7538    0   8   1         4
                52.62          1.24        1.7393    3   3   0         4
                55.30          1.57        1.6612    1   5   2         4
                56.04          9.05        1.6410   -2   4   3         4
                56.09          3.22        1.6396    0   2   3         4
                57.58          3.03        1.6008    2   6   1         4
                57.81          4.36        1.5950   -2   8   1         4
                57.88          2.08        1.5932    1   9   0         4
                59.05          6.70        1.5644    2   0   2         2
                61.75          1.51        1.5022    0   8   2         4
                62.29          1.83        1.4906   -2   8   2         4
                62.81          1.34        1.4794   -3   7   1         4
                63.10          1.56        1.4734   -2   6   3         4
                63.17          1.99        1.4720    3   3   1         4
                64.82          1.02        1.4384   -3   7   2         4
                66.43          5.11        1.4074   -4   4   1         4
                67.12          3.17        1.3945   -2   0   4         2
                67.17          1.07        1.3937    0   6   3         4
                67.20          1.18        1.3931    2   8   1         4
                67.27          2.68        1.3918    4   0   0         2
                67.67          3.26        1.3845   -4   2   3         4
                69.31          1.43        1.3557   -1   1   4         4
                70.02          4.82        1.3437   -2  10   1         4
                72.00          1.91        1.3115   -1  11   1         4
                72.31          1.34        1.3067   -2   8   3         4
                72.45          1.26        1.3045    4   4   0         4
                72.62          3.39        1.3019   -4   6   2         4
                76.15          2.98        1.2501    0   8   3         4
                77.35          1.22        1.2337   -4   0   4         2
                78.59          2.27        1.2172   -4   2   4         4
                78.67          1.49        1.2163    2  10   1         4
                78.74          1.23        1.2154    4   6   0         4
                79.24          1.17        1.2089    2   2   3         4
                79.94          1.43        1.2001    2   8   2         4
                80.03          2.76        1.1990    4   2   1         4
                81.37          1.84        1.1826   -4   8   2         4
                81.65          2.00        1.1792   -4   8   1         4
                82.94          2.17        1.1642    2   4   3         4
                85.28          1.90        1.1381    2  12   0         4
                86.52          2.34        1.1249    0   6   4         4
                87.19          1.12        1.1180   -2   8   4         4
                87.21          1.52        1.1178    0  12   2         4
                87.23          4.30        1.1176    0  10   3         4
                87.32          1.25        1.1166    4   8   0         4
                88.40          1.17        1.1058   -4   6   4         4
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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.