Ca2Ce8(SiO4)6O2
      Skakle J M S, Dickson C L, Glasser F P
      Powder Diffraction 15 (2000) 234-238
      The crystal structures of CeSiO4 and Ca2Ce8(SiO4)6O2
      Locality: synthetic
      _database_code_amcsd 0015319

      CELL PARAMETERS:    9.4343   9.4343   6.8885   90.000   90.000  120.000
      SPACE GROUP: P6_3/m    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    530.976
      Density (g/cm3):      5.576
      MAX. ABS. INTENSITY / VOLUME**2:      86.21800715    
      RIR:      5.034
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.83          5.63        8.1703    1   0   0         6
                21.76         22.58        4.0852    2   0   0         6
                22.85         27.72        3.8921    1   1   1        12
                25.87         20.57        3.4443    0   0   2         2
                28.12         29.09        3.1738    1   0   2        12
                28.91         10.32        3.0881    1   2   0         6
                28.91         17.62        3.0881    2   1   0         6
                31.75         40.47        2.8179    1   2   1        12
                31.75         59.53        2.8179    2   1   1        12
                32.18         36.94        2.7817    1   1   2        12
                32.89         20.42        2.7234    3   0   0         6
                39.18          1.86        2.2993    1   2   2        12
                39.78          4.35        2.2660    1   3   0         6
                40.42          2.22        2.2314    2   2   1        12
                42.31          1.14        2.1363    3   0   2        12
                43.85          9.95        2.0646    1   1   3        12
                44.35          6.71        2.0426    4   0   0         6
                46.68         15.32        1.9460    2   2   2        12
                48.06          7.32        1.8931    1   3   2        12
                48.06          2.57        1.8931    3   1   2        12
                48.57          1.47        1.8744    2   3   0         6
                48.57          2.01        1.8744    3   2   0         6
                49.46         16.45        1.8426    2   1   3        12
                49.46          9.13        1.8426    1   2   3        12
                50.46          5.73        1.8086    2   3   1        12
                50.46          9.20        1.8086    3   2   1        12
                51.24          8.53        1.7829    1   4   0         6
                51.24          4.10        1.7829    4   1   0         6
                52.05         19.29        1.7569    4   0   2        12
                53.19          7.01        1.7221    0   0   4         2
                58.13          1.60        1.5869    2   0   4        12
                59.91          1.46        1.5440    2   4   0         6
                60.38          5.42        1.5330    3   3   1        12
                61.67          2.12        1.5041    2   1   4        12
                61.67          2.37        1.5041    1   2   4        12
                62.96          5.29        1.4763    5   0   2        12
                63.96          2.40        1.4555    3   0   4        12
                64.14          1.75        1.4520    2   3   3        12
                64.14          3.63        1.4520    3   2   3        12
                64.98          1.16        1.4352    1   5   1        12
                64.98          1.95        1.4352    5   1   1        12
                65.23          3.47        1.4304    3   3   2        12
                71.32          1.01        1.3225    1   1   5        12
                71.68          2.55        1.3166    4   0   4        12
                72.91          1.96        1.2974    3   3   3        12
                73.71          2.10        1.2853    2   5   1        12
                73.71          1.13        1.2853    5   2   1        12
                75.00          1.20        1.2663    6   0   2        12
                75.57          2.19        1.2582    2   1   5        12
                75.57          1.88        1.2582    1   2   5        12
                76.98          1.38        1.2387    4   1   4        12
                76.98          3.21        1.2387    1   4   4        12
                77.14          1.10        1.2365    5   1   3        12
                77.92          1.08        1.2261    1   6   1        12
                77.92          2.21        1.2261    6   1   1        12
                78.15          2.16        1.2230    2   5   2        12
                85.40          1.25        1.1367    2   5   3        12
                87.97          1.08        1.1101    3   2   5        12
                89.49          1.15        1.0951    6   1   3        12
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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.