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 = 612 C
      Locality: synthetic
      _database_code_amcsd 0007998

      CELL PARAMETERS:    5.0401   5.0401  11.0630   90.000   90.000  120.000
      SPACE GROUP: P6_222    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    243.378
      Density (g/cm3):      2.496
      MAX. ABS. INTENSITY / VOLUME**2:      34.41651029    
      RIR:      4.490
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.35         19.52        4.3649    1   0   0         6
                21.89          2.74        4.0603    1   0   1        12
                26.00        100.00        3.4265    1   0   2        12
                35.63          3.38        2.5201    1   1   0         6
                38.54          2.29        2.3362    1   0   4        12
                41.37          3.74        2.1824    2   0   0         6
                44.64          2.48        2.0301    2   0   2        12
                48.89         13.26        1.8628    1   1   4        12
                58.37          5.04        1.5809    2   1   2        12
                65.93          2.79        1.4168    2   1   4        12
                66.37          4.78        1.4085    2   0   6        12
                73.55          1.19        1.2876    3   0   4        12
                75.44          1.20        1.2600    2   2   0         6
                77.66          1.26        1.2295    2   1   6        12
                78.97          1.32        1.2123    1   1   8        12
                81.37          1.88        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.