Topaz
      Chen J, Lager G A, Kunz M, Hansen T C, Ulmer P
      Acta Crystallographica E61 (2005) i253-i255
      A Rietveld refinement using neutron powder diffraction data of a
      fully deuterated topaz, Al2SiO4(OD)2
      Locality: synthetic
      _database_code_amcsd 0010464

      CELL PARAMETERS:    4.7282   8.9320   8.4309   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    356.056
      Density (g/cm3):      3.359
      MAX. ABS. INTENSITY / VOLUME**2:      7.507740303    
      RIR:      0.728
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.88          5.38        4.4660    0   2   0         2
                21.26          6.91        4.1788    1   1   0         4
                22.53          3.33        3.9465    0   2   1         4
                23.76         58.24        3.7441    1   1   1         8
                27.47         72.14        3.2467    1   2   0         4
                29.13         27.63        3.0655    0   2   2         4
                29.48         15.48        3.0298    1   2   1         8
                30.11        100.00        2.9677    1   1   2         8
                35.64         23.68        2.5194    1   3   0         4
                37.22          5.58        2.4158    1   0   3         4
                37.25         19.74        2.4140    1   3   1         8
                37.82         52.70        2.3786    0   2   3         4
                38.06          1.38        2.3641    2   0   0         2
                38.61          6.47        2.3320    1   1   3         8
                39.43          1.89        2.2854    2   1   0         4
                40.39          8.57        2.2330    0   4   0         2
                40.91         12.25        2.2058    2   1   1         8
                41.85          5.54        2.1586    0   4   1         4
                42.55         53.84        2.1248    1   2   3         8
                43.30         29.94        2.0894    2   2   0         4
                44.89          4.73        2.0191    1   4   0         4
                45.13          7.87        2.0091    2   1   2         8
                45.99          5.22        1.9732    0   4   2         4
                46.23          4.28        1.9636    1   4   1         8
                48.37         20.73        1.8819    1   1   4         8
                48.53         22.26        1.8759    1   3   3         8
                49.21          8.96        1.8514    2   3   0         4
                50.09          6.60        1.8210    1   4   2         8
                50.47          5.02        1.8083    2   3   1         8
                54.10         22.64        1.6951    2   3   2         8
                54.74          9.63        1.6768    2   2   3         8
                56.09         15.02        1.6398    1   4   3         8
                56.71          3.58        1.6233    2   4   0         4
                57.84          1.48        1.5941    2   4   1         8
                58.08          1.21        1.5882    1   0   5         4
                58.51          1.01        1.5775    0   2   5         4
                59.08          3.28        1.5637    1   1   5         8
                59.50          1.11        1.5535    1   5   2         8
                59.68          6.20        1.5494    2   1   4         8
                59.82         18.86        1.5461    2   3   3         8
                60.39          1.77        1.5328    0   4   4         4
                61.18          1.21        1.5149    2   4   2         8
                62.49         11.61        1.4862    3   2   0         4
                63.45          4.56        1.4660    0   6   1         4
                63.57          1.82        1.4637    3   2   1         8
                63.84          2.35        1.4581    1   4   4         8
                63.92          3.18        1.4565    3   1   2         8
                64.92         38.56        1.4363    1   5   3         8
                65.49         23.10        1.4253    2   5   0         4
                66.52          1.06        1.4057    2   4   3         8
                66.54          3.61        1.4053    2   5   1         8
                66.55         23.98        1.4051    0   0   6         2
                66.62          1.26        1.4037    0   6   2         4
                66.75          7.78        1.4013    1   3   5         8
                67.31          4.66        1.3910    2   3   4         8
                68.22         39.76        1.3746    3   0   3         4
                69.25          5.66        1.3568    2   1   5         8
                69.90          5.07        1.3457    1   6   2         8
                69.91          1.34        1.3456    0   4   5         4
                71.75          3.15        1.3155    0   6   3         4
                73.43          6.72        1.2896    1   2   6         8
                73.66          1.73        1.2861    2   4   4         8
                74.55          1.77        1.2729    3   4   1         8
                74.67          1.75        1.2711    2   5   3         8
                74.93          6.53        1.2674    1   6   3         8
                75.47          2.95        1.2597    2   6   0         4
                76.17          2.32        1.2498    3   1   4         8
                76.40          1.25        1.2466    2   3   5         8
                76.45          1.69        1.2459    2   6   1         8
                77.48          5.99        1.2319    1   7   0         4
                77.51          2.20        1.2315    3   4   2         8
                77.83          4.66        1.2272    1   3   6         8
                78.69          2.42        1.2160    0   6   4         4
                81.41          1.65        1.1820    4   0   0         2
                81.53          1.19        1.1807    2   5   4         8
                81.78          2.01        1.1776    1   6   4         8
                82.78          3.31        1.1660    2   2   6         8
                83.24          5.74        1.1607    4   1   1         8
                83.54          2.34        1.1573    1   1   7         8
                83.89          1.05        1.1534    1   4   6         8
                87.06          1.27        1.1193    2   3   6         8
                87.34          2.85        1.1165    0   8   0         2
                87.39          2.44        1.1160    0   6   5         4
                87.49          2.81        1.1149    3   2   5         8
                88.69          1.67        1.1029    4   2   2         8
                89.11          1.55        1.0988    3   4   4         8
                89.13          1.14        1.0986    4   3   0         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.