Bohmite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R120123
      Bokhimi X, Toledo-Antonio J A, Guzman-Castillo M L, Hernandez-Beltran F
      Journal of Solid State Chemistry 159 (2001) 32-40
      Relationship between crystallite size and bond lengths in boehmite
      Locality: synthetic
      Sample: preparation T = 140 C
      _database_code_amcsd 0014001

      CELL PARAMETERS:   2.8730 12.2430  3.7000   90.000   90.000   90.000
      SPACE GROUP: Cmcm      

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Al     0.00000  -0.31920   0.25000     1.000     0.600
            O      0.00000   0.29270   0.25000     1.000     1.000
            OH     0.00000   0.07800   0.25000     1.000     1.000

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  2 +/- 11 +/-  3
            MAX. ABS. INTENSITY / VOLUME**2:      22.19902315    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                14.47        100.00        6.1215    0   2   0
                28.18         46.71        3.1665    0   2   1
                38.31         43.36        2.3492    1   3   0
                45.75          4.43        1.9832    1   3   1
                48.87         30.06        1.8636    1   5   0
                49.25         20.28        1.8500    0   0   2
                51.61          5.27        1.7709    0   2   2
                55.19         13.19        1.6644    1   5   1
                60.50          5.77        1.5304    0   8   0
                64.07         14.45        1.4534    1   3   2
                64.91          7.02        1.4365    2   0   0
                66.90          2.11        1.3985    2   2   0
                67.63          6.53        1.3853    1   7   1
                71.91         13.53        1.3129    1   5   2
                72.22          4.37        1.3082    2   2   1
                79.23          1.60        1.2090    0   2   3
                81.65          3.85        1.1792    0   8   2
                83.10          3.93        1.1623    0  10   1
                85.60          5.12        1.1346    2   0   2
                87.42          1.76        1.1156    2   2   2
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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.