Topaz
      Wunder B, Rubie D C, Ross C R, Medenbach O, Seifert F, Schreyer W
      American Mineralogist 78 (1993) 285-297
      Synthesis, stability, and properties of Al2SiO4(OH)2: A fully hydrated
      analogue of topaz
      _database_code_amcsd 0001552

      CELL PARAMETERS:    4.7238   8.9473   8.3900   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    354.606
      Density (g/cm3):      3.335
      MAX. ABS. INTENSITY / VOLUME**2:      6.987887567    
      RIR:      0.682
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.85          9.11        4.4736    0   2   0         2
                21.27          7.76        4.1773    1   1   0         4
                22.52          3.99        3.9475    0   2   1         4
                23.79         73.04        3.7395    1   1   1         8
                27.46         78.27        3.2482    1   2   0         4
                29.18         28.37        3.0601    0   2   2         4
                29.49         16.37        3.0291    1   2   1         8
                30.19        100.00        2.9601    1   1   2         8
                35.60         24.40        2.5219    1   3   0         4
                37.23         19.31        2.4151    1   3   1         8
                37.37          5.96        2.4065    1   0   3         4
                37.94         52.79        2.3714    0   2   3         4
                38.75          5.98        2.3239    1   1   3         8
                39.46          1.70        2.2837    2   1   0         4
                40.32          8.37        2.2368    0   4   0         2
                40.96         13.42        2.2035    2   1   1         8
                41.79          5.12        2.1613    0   4   1         4
                42.66         53.34        2.1193    1   2   3         8
                43.32         30.12        2.0887    2   2   0         4
                44.83          4.43        2.0216    1   4   0         4
                45.21          7.16        2.0057    2   1   2         8
                45.98          4.60        1.9738    0   4   2         4
                46.19          4.64        1.9654    1   4   1         8
                48.57         20.82        1.8745    1   1   4         8
                48.61         22.27        1.8729    1   3   3         8
                49.21          8.82        1.8516    2   3   0         4
                50.09          6.40        1.8212    1   4   2         8
                50.48          4.80        1.8081    2   3   1         8
                54.14         21.33        1.6939    2   3   2         8
                54.86          8.22        1.6735    2   2   3         8
                56.14         15.23        1.6384    1   4   3         8
                56.68          3.24        1.6241    2   4   0         4
                57.83          1.31        1.5945    2   4   1         8
                59.35          2.43        1.5571    1   1   5         8
                59.87          6.07        1.5448    2   1   4         8
                59.91         17.86        1.5439    2   3   3         8
                60.51          1.95        1.5300    0   4   4         4
                62.54         10.75        1.4853    3   2   0         4
                63.35          4.31        1.4682    0   6   1         4
                63.62          1.68        1.4625    3   2   1         8
                63.96          2.27        1.4556    1   4   4         8
                64.01          3.03        1.4546    3   1   2         8
                64.94         35.03        1.4360    1   5   3         8
                65.43         21.04        1.4263    2   5   0         4
                66.49          3.32        1.4061    2   5   1         8
                66.55          1.06        1.4051    0   6   2         4
                66.91         21.66        1.3983    0   0   6         2
                66.99          6.66        1.3970    1   3   5         8
                67.47          4.58        1.3881    2   3   4         8
                68.37         35.93        1.3721    3   0   3         4
                69.52          4.73        1.3522    2   1   5         8
                69.84          4.62        1.3468    1   6   2         8
                70.11          1.04        1.3423    0   4   5         4
                71.73          2.90        1.3158    0   6   3         4
                73.77          6.04        1.2844    1   2   6         8
                73.79          1.56        1.2841    2   4   4         8
                74.57          1.57        1.2727    3   4   1         8
                74.71          1.71        1.2706    2   5   3         8
                74.92          5.68        1.2676    1   6   3         8
                75.38          2.71        1.2609    2   6   0         4
                76.37          2.05        1.2470    3   1   4         8
                76.38          1.46        1.2469    2   6   1         8
                77.34          5.11        1.2338    1   7   0         4
                77.56          1.67        1.2309    3   4   2         8
                78.16          4.03        1.2229    1   3   6         8
                78.74          2.02        1.2154    0   6   4         4
                81.51          1.40        1.1810    4   0   0         2
                81.83          1.94        1.1770    1   6   4         8
                83.13          2.95        1.1620    2   2   6         8
                83.34          4.43        1.1596    4   1   1         8
                84.00          2.16        1.1521    1   1   7         8
                87.15          2.51        1.1184    0   8   0         2
                87.40          1.18        1.1159    2   3   6         8
                87.52          1.87        1.1147    0   6   5         4
                87.76          2.20        1.1122    3   2   5         8
                88.81          1.32        1.1018    4   2   2         8
                89.26          1.16        1.0973    3   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.