Kupletskite
      Piilonen P C, McDonald A M, Lalonde A E
      The Canadian Mineralogist 41 (2003) 27-54
      Insights into astrophyllite-group minerals II: Crystal chemistry
      Sample: RUS9, nepheline syenite pegmatite
      Locality: Lovozero massif, Kola Peninsula, Russia
      _database_code_amcsd 0005807

      CELL PARAMETERS:    5.4022  23.2260  21.1782   90.000   95.246   90.000
      SPACE GROUP: C2/c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   2646.130
      Density (g/cm3):      3.060
      MAX. ABS. INTENSITY / VOLUME**2:      31.33627125    
      RIR:      3.335
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.61          2.61       11.6130    0   2   0         2
                 8.39        100.00       10.5447    0   0   2         2
                 8.69         18.98       10.1727    0   2   1         4
                15.26          6.13        5.8065    0   4   0         2
                15.83          1.18        5.5982    0   4   1         4
                20.10          2.21        4.4178    1   3   0         4
                20.23          5.62        4.3906   -1   3   1         4
                20.85          4.26        4.2602    1   3   1         4
                22.04          1.49        4.0331    1   1   3         4
                22.78          2.38        3.9033    0   4   4         4
                22.83          1.02        3.8944   -1   1   4         4
                24.59          5.99        3.6200    1   3   3         4
                25.31          1.41        3.5188   -1   3   4         4
                25.33          1.18        3.5159    1   5   0         4
                25.34         23.36        3.5149    0   0   6         2
                26.28          1.33        3.3909    0   6   3         4
                27.29          1.86        3.2676    1   3   4         4
                28.13          7.84        3.1720   -1   3   5         4
                29.71          1.10        3.0069    0   4   6         4
                30.38          3.43        2.9424    1   3   5         4
                30.66          2.66        2.9162    0   2   7         4
                31.41          2.94        2.8476    1   5   4         4
                32.18         20.33        2.7816    1   7   1         4
                33.62          8.88        2.6653   -2   0   2         2
                34.01          5.42        2.6362    0   0   8         2
                34.80         25.24        2.5780    1   7   3         4
                35.00          2.15        2.5635   -1   5   6         4
                36.07         10.72        2.4899   -2   0   4         2
                37.46          6.58        2.4005   -1   7   5         4
                38.96          2.02        2.3120    2   0   4         2
                39.23          7.02        2.2962    1   7   5         4
                40.32          4.56        2.2371   -2   0   6         2
                42.83          3.54        2.1116   -1   7   7         4
                42.88          1.29        2.1089    0   0  10         2
                44.23          2.84        2.0476    2   0   6         2
                45.04          3.54        2.0128    1   7   7         4
                51.87          1.33        1.7627    1   5  10         4
                51.88          6.72        1.7622    1   7   9         4
                52.64          3.81        1.7386   -2   0  10         2
                55.38          5.11        1.6590    0  14   0         2
                56.12          2.08        1.6388    0  14   2         4
                56.72          2.80        1.6228   -1   7  11         4
                57.98          1.24        1.5905    2   0  10         2
                58.30          7.79        1.5826   -3   7   1         4
                58.96          2.17        1.5664   -3   7   3         4
                59.07          2.33        1.5638    3   7   1         4
                59.57          1.37        1.5520    1   7  11         4
                61.84          1.06        1.5003    0  14   6         4
                64.90          2.92        1.4368   -1   7  13         4
                65.25          1.28        1.4298   -1   9  12         4
                66.12          1.73        1.4133    2   0  12         2
                66.37          2.11        1.4085   -2  14   2         4
                67.89          2.37        1.3806   -2  14   4         4
                69.04          1.03        1.3603   -3   7   9         4
                69.44          1.08        1.3535    3   7   7         4
                69.77          1.03        1.3479    2  14   4         4
                69.95          1.39        1.3449    4   0   0         2
                71.53          1.33        1.3190    4   0   2         2
                79.93          1.55        1.2003   -2  14  10         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.