Berlinite
      Muraoka Y, Kihara K
      Physics and Chemistry of Minerals 24 (1997) 243-253
      The temperature dependence of the crystal structure of berlinite,
      a quartz-type form of AlPO4
      Sample: T = 275 C
      Locality: synthetic
      _database_code_amcsd 0007989

      CELL PARAMETERS:    4.9688   4.9688  10.9790   90.000   90.000  120.000
      SPACE GROUP: P3_221    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    234.745
      Density (g/cm3):      2.588
      MAX. ABS. INTENSITY / VOLUME**2:      33.62411641    
      RIR:      4.231
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.64         20.31        4.3031    1   0   0         6
                22.19          1.79        4.0064    0   1   1         6
                22.19          1.06        4.0064    1   0   1         6
                26.32         30.45        3.3866    0   1   2         6
                26.32         69.55        3.3866    1   0   2         6
                36.16          6.55        2.4844    1   1   0         3
                38.92          6.30        2.3141    0   1   4         6
                39.83          3.09        2.2634    1   1   2         6
                41.99          5.37        2.1516    2   0   0         6
                45.27          1.76        2.0032    0   2   2         6
                49.49         11.58        1.8419    1   1   4         6
                54.16          2.73        1.6933    2   0   4         6
                54.49          1.41        1.6839    1   0   6         6
                59.26          4.17        1.5594    2   1   2         6
                59.26          3.72        1.5594    1   2   2         6
                63.10          1.53        1.4733    1   1   6         6
                66.87          3.55        1.3992    2   1   4         6
                66.87          1.20        1.3992    1   2   4         6
                67.16          4.39        1.3939    0   2   6         6
                67.16          1.25        1.3939    2   0   6         6
                67.49          3.41        1.3878    3   0   2         6
                72.26          1.34        1.3075    0   1   8         6
                74.66          1.55        1.2712    0   3   4         6
                78.72          1.66        1.2156    1   2   6         6
                79.84          1.85        1.2013    1   1   8         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.