Boromuscovite
      Liang J, Hawthorne F C, Novak M, Cerny P
      The Canadian Mineralogist 33 (1995) 859-865
      Crystal-structure refinement of boromuscovite polytypes using a coupled
      Rietveld-static-structure energy-minimization method
      Sample: 2M1 polytype
      Locality: Recice, Czech Republic
      _database_code_amcsd 0005445

      CELL PARAMETERS:    5.0900   8.8220  19.8190   90.000   95.620   90.000
      SPACE GROUP: C2/c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    885.674
      Density (g/cm3):      2.661
      MAX. ABS. INTENSITY / VOLUME**2:      9.767506395    
      RIR:      1.195
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 8.97        100.00        9.8619    0   0   2         2
                17.99         22.41        4.9309    0   0   4         2
                20.21         24.57        4.3929    1   1   0         4
                20.33         42.50        4.3672   -1   1   1         4
                20.63         11.01        4.3047    0   2   1         4
                21.09          3.84        4.2126    1   1   1         4
                21.43          4.33        4.1458   -1   1   2         4
                22.08         11.34        4.0266    0   2   2         4
                23.38         11.08        3.8049   -1   1   3         4
                24.30         10.32        3.6630    0   2   3         4
                25.99         18.33        3.4278   -1   1   4         4
                27.12         22.37        3.2876    0   2   4         4
                27.13         33.06        3.2873    0   0   6         2
                28.33         18.48        3.1499    1   1   4         4
                29.11          1.79        3.0674   -1   1   5         4
                30.40         18.96        2.9404    0   2   5         4
                31.75         13.78        2.8185    1   1   5         4
                32.61          8.46        2.7462   -1   1   6         4
                35.36          8.45        2.5382   -1   3   1         4
                35.44          2.75        2.5328    2   0   0         2
                35.47          1.81        2.5309    1   1   6         4
                35.73         11.91        2.5132   -2   0   2         2
                35.82         19.72        2.5067    1   3   1         4
                36.44          1.59        2.4655    0   0   8         2
                37.28         12.39        2.4122   -1   3   3         4
                37.52          6.69        2.3972    2   0   2         2
                38.33          6.02        2.3483   -2   0   4         2
                38.58         18.83        2.3336    1   3   3         4
                40.96          3.54        2.2036   -2   2   1         4
                41.10          1.04        2.1964    2   2   0         4
                41.19          1.29        2.1918    0   4   1         4
                41.28          2.29        2.1870   -1   3   5         4
                41.76          1.82        2.1628    2   2   1         4
                41.98          1.01        2.1523    0   4   2         4
                42.26          1.99        2.1386   -2   2   3         4
                42.89          5.46        2.1086   -2   0   6         2
                43.27         14.25        2.0912    1   3   5         4
                45.03          1.38        2.0133    0   4   4         4
                46.02         12.60        1.9724    0   0  10         2
                46.68          1.46        1.9459    2   2   4         4
                46.94          4.69        1.9358   -1   3   7         4
                47.41          3.00        1.9176    2   0   6         2
                48.97          2.09        1.8601   -2   0   8         2
                49.44          3.07        1.8434    1   3   7         4
                49.79          2.03        1.8315    0   4   6         4
                50.47          1.32        1.8084   -2   2   7         4
                52.70          1.10        1.7367    0   4   7         4
                53.46          2.54        1.7139   -2   2   8         4
                53.86          2.67        1.7021   -1   3   9         4
                55.11          1.16        1.6664   -2   4   1         4
                55.17          1.18        1.6648   -1   5   1         4
                55.28          1.10        1.6618   -3   1   2         4
                55.85          2.76        1.6460   -3   1   3         4
                56.24          4.77        1.6358   -2   0  10         2
                56.72          1.32        1.6231    2   4   2         4
                56.79         10.50        1.6212    1   3   9         4
                57.21          1.73        1.6103    3   1   2         4
                57.31          1.17        1.6077   -2   4   4         4
                57.84          2.33        1.5942   -1   5   4         4
                58.24          2.95        1.5842   -3   1   5         4
                58.85          2.47        1.5692   -2   4   5         4
                59.09          1.42        1.5633    1   5   4         4
                60.35          1.38        1.5337   -2   2  10         4
                60.60          1.72        1.5281    3   1   4         4
                60.77          1.26        1.5241   -2   4   6         4
                61.06          1.16        1.5175    1   5   5         4
                61.83          5.35        1.5006   -1   3  11         4
                62.45          1.71        1.4872    2   0  10         2
                63.24          6.81        1.4703    0   6   0         2
                63.28         12.36        1.4695   -3   3   1         4
                64.03          1.90        1.4543    0   6   2         4
                64.18          2.92        1.4512    3   3   1         4
                65.11          2.28        1.4327    1   3  11         4
                66.33          1.97        1.4092    2   2  10         4
                66.35          1.31        1.4088    0   0  14         2
                69.83          1.14        1.3470   -3   3   7         4
                70.57          1.46        1.3346    2   2  11         4
                70.72         10.51        1.3321   -1   3  13         4
                71.41          4.82        1.3210    2   0  12         2
                71.60          2.09        1.3179    0   4  12         4
                72.67          1.54        1.3011   -2   2  13         4
                74.62          1.61        1.2719   -4   0   2         2
                74.64          2.21        1.2716    2   6   0         4
                74.81          4.74        1.2691   -2   6   2         4
                74.87          1.69        1.2683   -3   3   9         4
                75.00          1.31        1.2664    4   0   0         2
                75.25          1.08        1.2628    0   6   8         4
                75.70          2.00        1.2564    3   3   7         4
                76.43          2.71        1.2462   -2   6   4         4
                76.82          2.66        1.2408    4   0   2         2
                78.18          1.24        1.2226   -4   0   6         2
                78.19          1.47        1.2224   -1   7   1         4
                78.62          2.17        1.2169    2   6   4         4
                78.77          1.69        1.2149   -3   5   3         4
                80.33          1.24        1.1952   -4   2   5         4
                87.90          1.08        1.1108   -2   4  14         4
                89.66          3.79        1.0935   -2   6  10         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.