Fluellite
Diffraction data computed using the structure from the paper listed below, 
along with the cell parameters refined from single crystal data of R070473
      Guy B B, Jeffrey G A
      American Mineralogist 51 (1966) 1579-1592
      The crystal structure of fluellite, Al2PO4F2(OH).7H2O

      CELL PARAMETERS:   8.5640 11.2220 21.1620   90.000   90.000   90.000
      ALTERNATE SETTING FOR SPACE GROUP: Fddd      

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Al     0.00000   0.00000   0.00000     1.000     0.303
            P      0.12500   0.12500   0.12500     1.000     0.437
            O      0.18120   0.90710   0.00330     1.000     1.048
            O      0.02200   0.04570   0.08340     1.000     0.731
            O      0.24150   0.99860   0.84140     1.000     1.695
            F      0.12500   0.12500   0.27670     1.000     0.577
            H      0.16600   0.99300   0.87400     1.000     1.803
            H      0.28000   0.06000   0.25000     0.810     1.000
            H      0.29000   0.10000   0.78000     0.750     1.000
            H      0.22000   0.94000   0.81000     0.250     1.000
            H      0.21000   0.90000   0.78000     0.750     1.000
            H      0.34000   0.96000   0.14000     0.500     1.000
            H      0.28000   0.96000   0.00000     0.250     1.000

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    0.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  7 +/- 10 +/- 19
            MAX. ABS. INTENSITY / VOLUME**2:      14.39637448    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                13.66        100.00        6.4809    1   1   1
                16.76          7.83        5.2905    0   0   4
                17.89         14.28        4.9571    0   2   2
                18.11          2.56        4.8986    1   1   3
                22.40          1.33        3.9693    2   0   2
                26.18          1.74        3.4040    2   2   0
                27.53         35.74        3.2404    2   2   2
                28.96         18.39        3.0832    1   3   3
                29.92          7.56        2.9861    0   2   6
                31.25          8.20        2.8626    2   2   4
                32.40         10.79        2.7630    1   1   7
                32.64          7.28        2.7432    3   1   1
                32.90          2.73        2.7224    2   0   6
                33.64         15.68        2.6638    1   3   5
                33.89          8.91        2.6453    0   0   8
                36.24          2.68        2.4786    0   4   4
                36.69          8.59        2.4493    2   2   6
                38.89          1.14        2.3157    3   1   5
                39.96          5.09        2.2564    3   3   1
                41.81          8.69        2.1603    3   3   3
                42.12          2.93        2.1451    2   4   4
                42.21          2.29        2.1410    4   0   0
                44.39          2.92        2.0409    3   1   7
                46.48          3.20        1.9537    2   4   6
                46.85          2.35        1.9390    1   3   9
                47.04          3.16        1.9318    1   5   5
                50.27          2.74        1.8149    3   3   7
                50.80          7.41        1.7972    2   2  10
                51.84          3.62        1.7635    0   0  12
                52.01          2.58        1.7583    3   5   1
                52.60          1.96        1.7400    4   2   6
                53.87          9.15        1.7020    4   4   0
                54.21          4.83        1.6919    2   6   2
                54.62          1.04        1.6804    4   4   2
                56.34          1.40        1.6329    3   3   9
                56.51          2.18        1.6285    3   5   5
                58.73          2.84        1.5721    5   1   5
                58.99          1.84        1.5658    2   2  12
                60.78          4.93        1.5238    3   5   7
                62.17          2.44        1.4930    0   4  12
                63.24          2.37        1.4705    1   3  13
                65.18          1.83        1.4313    4   4   8
                66.97          1.04        1.3973    1   7   7
                67.68          1.06        1.3844    5   3   7
                68.40          2.39        1.3716    6   2   2
                68.99          3.19        1.3612    4   0  12
                70.73          2.72        1.3319    2   6  10
                71.02          1.00        1.3273    3   7   5
                80.10          1.30        1.1981    3   3  15
                82.14          1.53        1.1735    5   1  13
                83.49          1.55        1.1579    6   2  10
                84.88          1.57        1.1424    1   9   7
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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.