Oursinite
      Kabatko K A, Burns P C
      American Mineralogist 91 (2006) 333-336
      A novel arrangement of silicate tetrahedra in the uranyl silicate sheet of
      oursinite, (Co0.8Mg0.2)[(UO2)(SiO3OH)]2(H2O)6
      _database_code_amcsd 0004122

      CELL PARAMETERS:    7.0494  17.5500  12.7340   90.000   90.000   90.000
      SPACE GROUP: Cmca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1575.412
      Density (g/cm3):      3.736
      MAX. ABS. INTENSITY / VOLUME**2:      79.14302913    
      RIR:      6.897
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.08        100.00        8.7750    0   2   0         2
                12.25         52.93        7.2256    0   2   1         4
                13.91          9.96        6.3670    0   0   2         2
                15.23          1.17        5.8186    1   1   1         8
                17.21         33.31        5.1534    0   2   2         4
                19.46         46.99        4.5626    1   1   2         8
                20.24         12.92        4.3875    0   4   0         2
                20.93         11.58        4.2444    1   3   1         8
                21.42         41.45        4.1482    0   4   1         4
                24.21         15.06        3.6758    1   3   2         8
                25.01         15.15        3.5607    1   1   3         8
                25.27         33.61        3.5247    2   0   0         2
                27.27         26.76        3.2707    2   2   0         4
                28.03          1.15        3.1835    0   0   4         2
                28.17          8.85        3.1679    2   2   1         8
                28.91         16.79        3.0883    1   3   3         8
                28.95          3.09        3.0837    2   0   2         4
                30.56          1.08        2.9250    0   6   0         2
                30.73         10.89        2.9093    2   2   2         8
                31.25         47.90        2.8625    1   1   4         8
                31.38         19.44        2.8508    0   6   1         4
                32.59          1.62        2.7478    2   4   0         4
                33.36         17.08        2.6860    2   4   1         8
                34.51         13.25        2.5992    1   3   4         8
                35.55         14.39        2.5254    1   5   3         8
                36.74          1.53        2.4459    0   2   5         4
                38.77          5.73        2.3226    1   7   1         8
                39.50          1.19        2.2813    2   2   4         8
                40.70          8.39        2.2167    1   3   5         8
                40.71         12.86        2.2165    2   6   1         8
                40.74          1.01        2.2147    1   7   2         8
                40.97          2.44        2.2026    0   4   5         4
                41.15          1.10        2.1937    0   8   0         2
                41.28         11.44        2.1873    3   1   2         8
                41.78          5.72        2.1619    0   8   1         4
                42.04          1.79        2.1492    3   3   1         8
                42.60          5.51        2.1223    0   0   6         2
                43.64          2.91        2.0741    0   8   2         4
                43.86          6.73        2.0641    1   7   3         8
                43.89          4.57        2.0629    3   3   2         8
                43.89          3.91        2.0629    0   2   6         4
                44.37          4.84        2.0418    3   1   3         8
                44.90          4.26        2.0187    1   1   6         8
                45.87          8.85        1.9785    1   5   5         8
                46.84          5.46        1.9395    3   3   3         8
                47.08          1.26        1.9301    3   5   1         8
                47.33          1.88        1.9207    0   6   5         4
                47.35          1.04        1.9197    1   3   6         8
                47.96          1.87        1.8970    1   7   4         8
                48.43         16.01        1.8797    3   1   4         8
                48.75          1.25        1.8679    2   4   5         8
                48.90          1.53        1.8625    2   8   0         4
                49.46          5.15        1.8429    2   8   1         8
                50.18          5.13        1.8182    2   0   6         4
                50.64          2.43        1.8025    1   9   2         8
                50.75          5.22        1.7990    3   3   4         8
                51.10          2.53        1.7876    2   8   2         8
                51.29          1.73        1.7813    0   2   7         4
                51.32          2.53        1.7804    2   2   6         8
                51.52          9.34        1.7739    3   5   3         8
                51.88          5.13        1.7623    4   0   0         2
                52.11          5.13        1.7550    0  10   0         2
                52.86          7.37        1.7319    1   7   5         8
                53.00          2.86        1.7278    4   2   0         4
                53.31          4.34        1.7185    1   9   3         8
                53.52          1.73        1.7122    4   2   1         8
                53.96          1.92        1.6992    3   7   1         8
                54.40          1.08        1.6866    2   6   5         8
                54.61          2.74        1.6804    0   4   7         4
                54.64          1.26        1.6797    2   4   6         8
                55.07          2.27        1.6675    4   2   2         8
                55.48          4.36        1.6563    3   3   5         8
                56.76          4.00        1.6220    4   4   1         8
                56.89          5.87        1.6184    1   9   4         8
                58.01          1.92        1.5898    2   2   7         8
                58.02          3.61        1.5897    3   7   3         8
                58.77          4.08        1.5710    2  10   0         4
                58.87          1.28        1.5687    3   1   6         8
                58.97          3.19        1.5662    0   2   8         4
                59.67          3.26        1.5496    3   5   5         8
                59.87          2.61        1.5448    0   6   7         4
                60.72          1.13        1.5253    2  10   2         8
                61.09          3.22        1.5169    2   4   7         8
                61.30          1.00        1.5122    1   9   5         8
                61.33          2.25        1.5116    1  11   2         8
                61.42          1.12        1.5095    3   7   4         8
                61.90          3.85        1.4990    4   6   1         8
                63.62          1.25        1.4625    0  12   0         2
                63.72          1.91        1.4606    3   9   2         8
                64.20          1.97        1.4507    2   0   8         4
                65.18          3.59        1.4313    2   2   8         8
                65.65          4.24        1.4222    3   7   5         8
                66.03          3.23        1.4148    2   6   7         8
                66.04          2.61        1.4148    3   9   3         8
                66.81          1.51        1.4003    0   8   7         4
                66.93          4.85        1.3980    1  11   4         8
                68.36          1.38        1.3723    5   1   2         8
                68.72          1.92        1.3660    4   8   1         8
                69.22          3.63        1.3574    3   9   4         8
                69.30          1.66        1.3558    4   0   6         4
                69.50          1.48        1.3525    0  10   6         4
                69.60          1.86        1.3508    2  12   0         4
                70.25          1.15        1.3399    4   2   6         8
                71.38          1.11        1.3214    2  12   2         8
                72.46          1.18        1.3043    5   3   3         8
                72.65          2.11        1.3014    2   8   7         8
                72.87          1.05        1.2981    1  13   2         8
                73.23          1.74        1.2925    3  11   2         8
                73.39          1.15        1.2901    1   5   9         8
                73.51          1.13        1.2883    0   8   8         4
                73.69          3.23        1.2857    5   1   4         8
                75.25          1.83        1.2627    2  10   6         8
                75.52          1.21        1.2589    5   3   4         8
                75.59          1.22        1.2579    2   4   9         8
                76.14          1.65        1.2502    5   5   3         8
                76.16          1.75        1.2499    1   1  10         8
                76.62          1.98        1.2436    4  10   0         4
                78.08          1.88        1.2240    1  13   4         8
                78.43          3.36        1.2193    3  11   4         8
                78.68          1.56        1.2162    4   4   7         8
                79.15          1.47        1.2100    2   8   8         8
                80.12          1.27        1.1979    2   6   9         8
                81.55          1.16        1.1804    5   7   3         8
                82.01          1.16        1.1749    6   0   0         2
                82.37          1.97        1.1707    4   2   8         8
                82.98          1.44        1.1637    5   5   5         8
                83.15          1.71        1.1617    4   6   7         8
                86.00          1.42        1.1304    6   4   1         8
                86.88          1.09        1.1212    1   3  11         8
                87.18          1.60        1.1181    2  10   8         8
                87.26          1.28        1.1173    3   1  10         8
                87.60          1.32        1.1138    1  15   3         8
                88.30          1.36        1.1068    5   7   5         8
                89.13          1.48        1.0987    3  13   4         8
                89.36          1.17        1.0964    4   8   7         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.