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 = 523 C
      Locality: synthetic
      _database_code_amcsd 0007993

      CELL PARAMETERS:    5.0017   5.0017  11.0190   90.000   90.000  120.000
      SPACE GROUP: P3_221    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    238.731
      Density (g/cm3):      2.544
      MAX. ABS. INTENSITY / VOLUME**2:      33.69917158    
      RIR:      4.312
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.50         20.80        4.3316    1   0   0         6
                22.05          1.67        4.0313    0   1   1         6
                22.05          1.13        4.0313    1   0   1         6
                26.17         34.95        3.4052    0   1   2         6
                26.17         65.05        3.4052    1   0   2         6
                35.91          4.97        2.5008    1   1   0         3
                38.74          4.76        2.3245    0   1   4         6
                39.58          2.10        2.2772    1   1   2         6
                41.70          4.72        2.1658    2   0   0         6
                44.97          1.82        2.0157    0   2   2         6
                49.21         12.07        1.8516    1   1   4         6
                53.85          2.13        1.7026    2   0   4         6
                54.25          1.01        1.6908    1   0   6         6
                58.84          3.38        1.5694    2   1   2         6
                58.84          3.08        1.5694    1   2   2         6
                66.43          2.64        1.4074    2   1   4         6
                66.43          1.27        1.4074    1   2   4         6
                66.79          3.69        1.4007    0   2   6         6
                66.79          1.48        1.4007    2   0   6         6
                67.00          2.18        1.3967    3   0   2         6
                74.14          1.07        1.2789    0   3   4         6
                78.22          1.08        1.2221    1   2   6         6
                79.43          1.60        1.2065    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.