Isokite
      Yang H, Zwick J, Downs R T, Costin G
      Acta Crystallographica C63 (2007) i89-i90
      Isokite, CaMg(PO4)F0.8(OH)0.2, isomorphous with titanite
      Locality: Kjorrestad, near Bamle, Norway
      _database_code_amcsd 0010337

      CELL PARAMETERS:    6.5109   8.7301   6.9046   90.000  112.246   90.000
      SPACE GROUP: C2/c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    363.251
      Density (g/cm3):      3.250
      MAX. ABS. INTENSITY / VOLUME**2:      9.548145496    
      RIR:      0.957
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.34          5.77        4.3650    0   2   0         2
                24.70          2.93        3.6045    0   2   1         4
                25.95          2.44        3.4340    1   1   1         4
                27.92         32.53        3.1953    0   0   2         2
                28.12         87.28        3.1738   -1   1   2         4
                29.65        100.00        3.0131    2   0   0         2
                32.21         31.35        2.7795   -2   0   2         2
                34.22         74.08        2.6205    1   3   0         4
                34.48          5.35        2.6012   -2   2   1         4
                34.79         48.05        2.5783    0   2   2         4
                36.23          3.80        2.4797    2   2   0         4
                39.25         38.07        2.2955    1   3   1         4
                40.55         18.88        2.2247   -1   1   3         4
                40.78         17.24        2.2127   -1   3   2         4
                43.04          5.33        2.1015    2   2   1         4
                43.04         16.27        2.1014   -3   1   1         4
                43.83         14.28        2.0654    0   4   1         4
                44.47         18.59        2.0373   -3   1   2         4
                46.38          4.73        1.9576    3   1   0         4
                46.77          3.74        1.9425   -2   2   3         4
                48.41          5.56        1.8802    1   3   2         4
                48.76         10.71        1.8675    2   0   2         2
                50.42          1.33        1.8100   -2   4   1         4
                50.65         11.38        1.8022    0   4   2         4
                51.71          1.42        1.7677    1   1   3         4
                52.69          1.17        1.7371   -3   3   1         4
                53.36         23.45        1.7170    2   2   2         4
                53.37         23.03        1.7166   -2   4   2         4
                53.82         11.86        1.7034   -2   0   4         2
                53.92          8.14        1.7003   -3   3   2         4
                54.59          2.01        1.6813   -1   1   4         4
                55.14          2.55        1.6658   -1   5   1         4
                55.59         28.11        1.6531    3   3   0         4
                57.70          4.73        1.5977    0   0   4         2
                59.49         13.02        1.5538   -1   5   2         4
                60.34          3.37        1.5340    1   3   3         4
                61.02          5.02        1.5184   -4   2   2         4
                61.55          4.69        1.5066    4   0   0         2
                62.23          3.25        1.4917    3   3   1         4
                62.95         19.72        1.4764   -1   3   4         4
                63.99          1.17        1.4550    0   6   0         2
                64.33          3.91        1.4481    3   1   2         4
                65.53          9.19        1.4245    1   5   2         4
                65.82          2.02        1.4190    2   4   2         4
                67.38         15.24        1.3897   -4   0   4         2
                67.68          9.07        1.3844   -3   3   4         4
                70.16          9.15        1.3413   -3   5   2         4
                71.02          1.27        1.3273   -2   6   1         4
                71.21          1.07        1.3242    0   6   2         4
                71.61          2.88        1.3178    3   5   0         4
                72.08          7.16        1.3102    2   6   0         4
                72.70          4.05        1.3006   -4   4   2         4
                74.47          8.82        1.2741    1   3   4         4
                77.50          6.73        1.2317    2   0   4         2
                78.16          2.73        1.2229   -1   5   4         4
                79.16          1.62        1.2099   -3   3   5         4
                79.29          1.44        1.2083   -2   6   3         4
                80.04          2.71        1.1988    4   0   2         2
                80.87          1.31        1.1886   -5   3   2         4
                82.53          1.96        1.1689   -5   3   3         4
                83.65          1.39        1.1560    4   2   2         4
                86.62          1.67        1.1238    3   5   2         4
                87.53          3.34        1.1145   -5   3   4         4
                87.63          5.57        1.1135    5   3   0         4
                87.71          4.99        1.1127    1   7   2         4
                88.34          3.86        1.1064   -2   6   4         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.