Bobierrite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R060681
      Takagi S, Mathew M, Brown W E
      American Mineralogist 71 (1986) 1229-1233
      Crystal structures of bobierrite and synthetic Mg3(PO4)2(H2O)8

      CELL PARAMETERS:   4.674342   27.87752   10.06098   90.00000   104.9396   90.00000
      SPACE GROUP: C2/c
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                 6.39          9.16       13.9388    0   2   0
                11.14         31.26        7.9734    0   2   1
                12.74        100.00        6.9694    0   4   0
                18.29          3.09        4.8605    0   0   2
                19.71          2.22        4.5106   -1   1   1
                21.23          2.24        4.1920    0   6   1
                21.70         10.19        4.1015   -1   3   1
                22.33          2.63        3.9867    0   4   2
                23.42          5.37        3.8027   -1   1   2
                25.22          7.10        3.5348   -1   5   1
                25.41          2.55        3.5094    1   5   0
                25.59          1.12        3.4847    0   8   0
                25.68          3.41        3.4724    1   3   1
                28.30          5.05        3.1561    0   2   3
                28.75          1.05        3.1080    1   5   1
                29.70         14.87        3.0107   -1   1   3
                29.78          7.30        3.0027   -1   7   1
                29.94          2.71        2.9871    1   7   0
                30.49         11.91        2.9344    1   1   2
                31.08          1.88        2.8794   -1   3   3
                31.61          2.58        2.8320    0   8   2
                31.84          9.07        2.8124    1   3   2
                32.42          3.02        2.7638   -1   7   2
                33.74          3.14        2.6578    0   6   3
                34.41          4.40        2.6081    1   5   2
                35.15         10.57        2.5544    1   9   0
                37.01          4.58        2.4302    0   0   4
                37.32         14.91        2.4106   -1   9   2
                37.38          6.66        2.4066   -1   1   4
                38.29          1.01        2.3519    1   1   3
                38.52          1.70        2.3379   -1   3   4
                39.11          1.72        2.3042   -2   2   1
                39.94          2.33        2.2582    2   0   0
                40.72          1.47        2.2164   -1  11   1
                42.31          8.24        2.1365    1   9   2
                42.77          1.61        2.1149   -1  11   2
                42.80          2.82        2.1133    0  10   3
                43.12          1.84        2.0987    1  11   1
                43.93          2.72        2.0614    2   2   1
                45.94          1.46        1.9758   -1   1   5
                46.91          1.15        1.9371    1  13   0
                46.98          1.99        1.9345   -2   6   3
                47.21          1.15        1.9255    0   2   5
                47.37          2.84        1.9193   -2   0   4
                47.75          1.52        1.9049   -1   9   4
                47.84          3.15        1.9018    2   6   1
                48.64          1.48        1.8721   -1  13   2
                48.65          1.89        1.8718    2   0   2
                51.01          1.24        1.7907   -2  10   1
                51.53          1.12        1.7735   -1   7   5
                52.52          2.26        1.7423    0  16   0
                54.23          4.33        1.6914   -2  10   3
                55.01          3.98        1.6693    2  10   1
                57.82          2.94        1.5947    0  10   5
                58.48          2.21        1.5781    0   4   6
                59.20          1.66        1.5607   -1  11   5
                59.70          1.63        1.5488    0  18   0
                61.14          1.07        1.5156    1   7   5
                61.20          2.29        1.5142   -2   0   6
                62.99          3.31        1.4754    2   0   4
                63.33          2.53        1.4684   -1   9   6
                64.53          1.35        1.4439   -3   7   1
                65.06          1.29        1.4334    1  17   2
                67.14          2.12        1.3939    0  20   0
                67.34          1.65        1.3903   -3   9   2
                71.42          1.66        1.3204   -1  19   3
                71.33          1.51        1.3219   -3  11   1
                76.64          1.23        1.2430    0  10   7
                76.90          1.07        1.2393    1   1   7
                82.56          1.12        1.1682   -4   0   2
                82.56          1.12        1.1682   -4   0   2
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.