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 = 589 C
      Locality: synthetic
      _database_code_amcsd 0007996

      CELL PARAMETERS:    5.0400   5.0400  11.0630   90.000   90.000  120.000
      SPACE GROUP: P6_222    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    243.369
      Density (g/cm3):      2.496
      MAX. ABS. INTENSITY / VOLUME**2:      34.45155271    
      RIR:      4.494
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.35         19.47        4.3648    1   0   0         6
                21.89          2.72        4.0602    1   0   1        12
                26.00        100.00        3.4265    1   0   2        12
                35.63          3.40        2.5200    1   1   0         6
                38.54          2.35        2.3362    1   0   4        12
                41.37          3.79        2.1824    2   0   0         6
                44.64          2.45        2.0301    2   0   2        12
                48.90         13.28        1.8627    1   1   4        12
                58.37          5.11        1.5809    2   1   2        12
                65.93          2.83        1.4168    2   1   4        12
                66.37          4.83        1.4084    2   0   6        12
                73.56          1.21        1.2876    3   0   4        12
                75.45          1.22        1.2600    2   2   0         6
                77.66          1.25        1.2295    2   1   6        12
                78.97          1.33        1.2123    1   1   8        12
                81.37          1.91        1.1826    3   1   2        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.