Benitoite
      Hejny C, Miletich R, Jasser A, Schouwink P, Crichton W, Kahlenberg V
      American Mineralogist 97 (2012) 1749-1763
      Second-order P6c2-P31c transition and structural crystallography of
      the cyclosilicate benitoite, BaTiSi3O9, at high pressure
      Note: P = 3.56 GPa
      Locality: San Benito, California, USA
      _database_code_amcsd 0019509

      CELL PARAMETERS:    6.5689   6.5689   9.6804   90.000   90.000  120.000
      SPACE GROUP: P-6c2     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    361.751
      Density (g/cm3):      3.795
      MAX. ABS. INTENSITY / VOLUME**2:      53.99616633    
      RIR:      4.633
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.58         27.14        5.6888    1   0   0         3
                18.33          3.04        4.8402    0   0   2         2
                24.14        100.00        3.6864    1   0   2         6
                27.15         16.01        3.2845    1   1   0         6
                28.70         11.95        3.1103    1   1   1        12
                31.45         26.51        2.8444    2   0   0         3
                32.96         81.68        2.7178    1   1   2        12
                36.64          5.23        2.4523    2   0   2         6
                37.15         10.09        2.4201    0   0   4         2
                40.51          8.97        2.2270    1   0   4         6
                42.02         18.95        2.1502    2   1   0         6
                43.10          6.41        2.0990    2   1   1        12
                46.20         12.83        1.9650    2   1   2        12
                46.62         16.72        1.9483    1   1   4        12
                47.98         11.82        1.8963    3   0   0         3
                49.45         16.57        1.8432    2   0   4         6
                51.04          2.30        1.7893    2   1   3        12
                51.78         13.80        1.7656    3   0   2         6
                56.00          4.77        1.6422    2   2   0         6
                57.32         11.89        1.6074    2   1   4        12
                58.50          1.68        1.5778    3   1   0         6
                59.35          2.93        1.5572    3   1   1        12
                59.43          7.08        1.5552    2   2   2        12
                59.56          6.75        1.5522    1   0   6         6
                61.85         11.79        1.5001    3   1   2        12
                62.19          6.77        1.4926    3   0   4         6
                64.33         11.43        1.4481    1   1   6        12
                65.90          3.33        1.4174    3   1   3        12
                68.80          4.01        1.3645    4   0   2         6
                69.13          8.10        1.3589    2   2   4        12
                71.36          2.24        1.3217    3   1   4        12
                72.41          2.43        1.3051    3   2   0         6
                73.37          2.59        1.2905    2   1   6        12
                75.44          3.15        1.2601    3   2   2        12
                76.78          6.32        1.2414    4   1   0         6
                77.52          1.59        1.2313    4   1   1        12
                77.71          3.20        1.2288    3   0   6         6
                77.91          2.58        1.2262    4   0   4         6
                78.15          1.69        1.2231    3   1   5        12
                79.15          2.56        1.2100    0   0   8         2
                79.16          2.06        1.2099    3   2   3        12
                79.75          6.20        1.2025    4   1   2        12
                84.11          2.83        1.1509    2   2   6        12
                84.31          3.12        1.1487    3   2   4        12
                85.52          1.31        1.1354    1   1   8        12
                86.22          4.43        1.1280    3   1   6        12
                87.63          2.56        1.1135    2   0   8         6
                88.52          4.61        1.1046    4   1   4        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.