Phenakite
      Hazen R M, Finger L W
      Physics and Chemistry of Minerals 14 (1987) 426-434
      High-temperature crystal chemistry of phenakite (Be2SiO4) and
      Chrysoberyl (BeAl2O4)
      Sample: T = 690 C
      _database_code_amcsd 0007442

      CELL PARAMETERS:   12.4820  12.4820   8.2660   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1115.307
      Density (g/cm3):      2.950
      MAX. ABS. INTENSITY / VOLUME**2:      6.504022373    
      RIR:      0.718
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.19         47.33        6.2410    1   1   0         6
                19.62          2.15        4.5237    0   2   1         6
                23.04         25.40        3.8605    0   1   2         6
                24.30         47.95        3.6627    3  -1   1         6
                24.30         28.20        3.6627    2   1   1         6
                24.71         34.06        3.6032    3   0   0         6
                27.16          3.07        3.2831    2   0   2         6
                28.61        100.00        3.1205    2   2   0         6
                30.77          6.83        2.9056   -1   3   2         6
                30.77          9.10        2.9056    1   2   2         6
                31.75          8.58        2.8184    1   3   1         6
                31.75          3.58        2.8184   -1   4   1         6
                35.62         36.94        2.5206    2  -1   3         6
                35.62         37.04        2.5206    1   1   3         6
                38.15          2.89        2.3589    1   4   0         6
                38.15         47.53        2.3589    4   1   0         6
                39.86          5.37        2.2618    0   4   2         6
                41.25         31.21        2.1887    0   3   3         6
                41.25         31.21        2.1887    3   0   3         6
                42.51          1.28        2.1265    2   3   2         6
                43.50         40.77        2.0803    3   3   0         6
                44.64          2.83        2.0297    1   0   4         6
                45.75          4.92        1.9832    2   4   1         6
                47.46          9.01        1.9157    5   0   2         6
                49.42          1.68        1.8440    3  -1   4         6
                49.42          1.30        1.8440    2   1   4         6
                50.67          3.06        1.8016    6   0   0         6
                50.96          6.32        1.7919    4   1   3         6
                50.96          6.31        1.7919   -1   5   3         6
                52.04          3.29        1.7573   -1   6   2         6
                52.68          1.26        1.7374    4   3   1         6
                52.68          4.77        1.7374    7  -3   1         6
                52.89         11.29        1.7309    2   5   0         6
                52.89          1.37        1.7309    5   2   0         6
                55.33          9.76        1.6603    6  -3   3         6
                55.33          9.91        1.6603    3   3   3         6
                56.02          2.11        1.6416    4   0   4         6
                56.96          1.49        1.6166    1   6   1         6
                60.40          2.88        1.5325    1   2   5         6
                60.40          2.05        1.5325   -1   3   5         6
                61.50          9.95        1.5079    0   6   3         6
                61.50          9.94        1.5079    6   0   3         6
                62.14          3.87        1.4938    0   5   4         6
                63.02          2.88        1.4750    6   2   1         6
                65.15          6.50        1.4318    1   7   0         6
                65.15          7.54        1.4318    7   1   0         6
                66.03          1.36        1.4150    5   1   4         6
                68.05         16.22        1.3777    0   0   6         2
                68.95          1.38        1.3619    6   3   0         6
                68.95          1.28        1.3619    3   6   0         6
                71.95          1.64        1.3124    4   5   2         6
                73.72          1.04        1.2851    6  -2   5         6
                74.72          4.70        1.2705   -1   8   3         6
                74.72         16.75        1.2705    1   7   3         6
                74.72         16.75        1.2705    8  -1   3         6
                74.72          4.71        1.2705    7   1   3         6
                75.42          3.21        1.2603    4  -2   6         6
                75.42          3.25        1.2603    2   2   6         6
                78.31          8.15        1.2209   -3   9   3         6
                78.31          8.15        1.2209    6   3   3         6
                79.12          1.35        1.2104    3   4   5         6
                79.86          9.67        1.2011    9   0   0         6
                80.79          4.04        1.1896    4   1   6         6
                80.79          4.01        1.1896   -1   5   6         6
                84.19          1.10        1.1500    9  -4   4         6
                84.31          1.63        1.1486    3   3   6         6
                84.31          1.62        1.1486    6  -3   6         6
                85.62          1.16        1.1344    3  -1   7         6
                87.93          1.20        1.1105   -2   8   5         6
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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.