Phenakite
      Hazen R M, Au A Y
      Physics and Chemistry of Minerals 13 (1986) 69-78
      High-pressure crystal chemistry of phenakite (Be2SiO4)
      and bertrandite (Be4Si2O7(OH)2)
      Sample: P = 16 kbar
      _database_code_amcsd 0007372

      CELL PARAMETERS:   12.4370  12.4370   8.2280   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1102.189
      Density (g/cm3):      2.986
      MAX. ABS. INTENSITY / VOLUME**2:      6.580052099    
      RIR:      0.718
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.24         46.71        6.2185    1   1   0         6
                19.70          2.45        4.5060    0   2   1         6
                23.14         24.33        3.8432    0   1   2         6
                24.39         47.06        3.6488    3  -1   1         6
                24.39         27.08        3.6488    2   1   1         6
                24.80         35.40        3.5903    3   0   0         6
                27.28          2.98        3.2692    2   0   2         6
                28.71        100.00        3.1093    2   2   0         6
                30.90          8.22        2.8937    1   2   2         6
                30.90          6.84        2.8937   -1   3   2         6
                31.87          3.76        2.8079   -1   4   1         6
                31.87          8.57        2.8079    1   3   1         6
                35.78         37.21        2.5094    2  -1   3         6
                35.78         36.54        2.5094    1   1   3         6
                38.29          3.31        2.3504    1   4   0         6
                38.29         48.58        2.3504    4   1   0         6
                40.02          5.32        2.2530    0   4   2         6
                41.43         30.98        2.1795    0   3   3         6
                41.43         31.78        2.1795    3   0   3         6
                42.68          1.24        2.1183    2   3   2         6
                43.67         42.65        2.0728    3   3   0         6
                44.86          3.09        2.0205    1   0   4         6
                45.93          4.72        1.9759    2   4   1         6
                47.65          8.96        1.9084    5   0   2         6
                49.66          1.93        1.8359    3  -1   4         6
                49.66          1.38        1.8359    2   1   4         6
                50.87          3.00        1.7951    6   0   0         6
                51.18          6.46        1.7847    4   1   3         6
                51.18          6.44        1.7847   -1   5   3         6
                52.26          3.61        1.7506   -1   6   2         6
                52.89          1.19        1.7311    4   3   1         6
                52.89          4.93        1.7311    7  -3   1         6
                53.10         11.50        1.7247    2   5   0         6
                53.10          1.58        1.7247    5   2   0         6
                55.57          9.78        1.6537    6  -3   3         6
                55.57          9.68        1.6537    3   3   3         6
                56.28          1.98        1.6346    4   0   4         6
                56.59          1.16        1.6264    3   4   2         6
                57.19          1.52        1.6107    1   6   1         6
                60.70          1.84        1.5257   -1   3   5         6
                60.70          2.89        1.5257    1   2   5         6
                61.76         10.36        1.5020    6   0   3         6
                61.76         10.67        1.5020    0   6   3         6
                62.42          3.88        1.4877    0   5   4         6
                63.28          2.89        1.4696    6   2   1         6
                65.42          7.74        1.4266    7   1   0         6
                65.42          6.64        1.4266    1   7   0         6
                66.33          1.61        1.4092    5   1   4         6
                68.41         16.77        1.3713    0   0   6         2
                69.24          1.35        1.3570    3   6   0         6
                69.24          1.58        1.3570    6   3   0         6
                72.26          1.58        1.3075    4   5   2         6
                72.78          1.04        1.2993   -2   9   1         6
                74.09          1.02        1.2797    6  -2   5         6
                75.05         17.25        1.2656    1   7   3         6
                75.05          4.58        1.2656   -1   8   3         6
                75.05         17.45        1.2656    8  -1   3         6
                75.05          4.51        1.2656    7   1   3         6
                75.82          3.31        1.2547    2   2   6         6
                75.82          3.30        1.2547    4  -2   6         6
                78.67          8.83        1.2163   -3   9   3         6
                78.67          8.91        1.2163    6   3   3         6
                79.52          1.28        1.2054    3   4   5         6
                80.21          9.81        1.1968    9   0   0         6
                81.21          4.32        1.1845   -1   5   6         6
                81.21          4.19        1.1845    4   1   6         6
                84.60          1.05        1.1455    9  -4   4         6
                84.76          1.89        1.1437    3   3   6         6
                84.76          1.81        1.1437    6  -3   6         6
                86.10          1.13        1.1293    3  -1   7         6
                88.38          1.11        1.1060   -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.