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 = 366 C
      Locality: synthetic
      _database_code_amcsd 0007990

      CELL PARAMETERS:    4.9799   4.9799  10.9920   90.000   90.000  120.000
      SPACE GROUP: P3_221    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    236.074
      Density (g/cm3):      2.573
      MAX. ABS. INTENSITY / VOLUME**2:      33.56705800    
      RIR:      4.248
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.59         21.12        4.3127    1   0   0         6
                22.14          1.76        4.0148    0   1   1         6
                22.14          1.10        4.0148    1   0   1         6
                26.27         31.58        3.3928    0   1   2         6
                26.27         68.42        3.3928    1   0   2         6
                36.07          5.86        2.4899    1   1   0         3
                38.86          5.84        2.3175    0   1   4         6
                39.74          2.90        2.2680    1   1   2         6
                41.89          5.28        2.1564    2   0   0         6
                45.17          1.86        2.0074    0   2   2         6
                49.39         11.59        1.8452    1   1   4         6
                54.06          2.59        1.6964    2   0   4         6
                54.41          1.31        1.6862    1   0   6         6
                59.12          3.84        1.5628    2   1   2         6
                59.12          3.50        1.5628    1   2   2         6
                62.99          1.34        1.4756    1   1   6         6
                66.72          3.29        1.4020    2   1   4         6
                66.72          1.26        1.4020    1   2   4         6
                67.03          4.13        1.3962    0   2   6         6
                67.03          1.32        1.3962    2   0   6         6
                67.33          3.04        1.3908    3   0   2         6
                72.15          1.17        1.3092    0   1   8         6
                74.49          1.39        1.2738    0   3   4         6
                78.55          1.46        1.2178    1   2   6         6
                79.71          1.76        1.2030    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.