Gyrolite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R060163
      Merlino S
      Mineralogical Magazine 52 (1988) 377-387
      Gyrolite: its crystal structure and crystal chemistry
      Locality: Qarusait, Greenland
      Note: x-coordinate of O102 adjusted to match reported bond lengths
      Note: occupancies invented to match formula
      Locality: Qarusait, Greenland

      CELL PARAMETERS:   9.740000   9.740000   22.40000   95.70000   91.50000   120.0000
      SPACE GROUP: P-1
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                 4.05        100.00       22.2116    0   0   1
                 8.03         25.99       11.1058    0   0   2
                10.46          1.56        8.5152   -1   1   0
                10.56          1.13        8.4348    1   0   0
                11.04          1.79        8.0649    1  -1   1
                11.91          3.44        7.4703    0   1   1
                12.52          1.25        7.1064   -1   0   2
                18.26          1.62        4.8751   -1  -1   1
                18.25          1.18        4.8783    1  -2   1
                18.40          1.20        4.8384   -2   1   1
                18.71          1.61        4.7570    2  -1   1
                18.77          1.37        4.7433    1  -1   4
                19.13          1.06        4.6545   -1   2   1
                19.52          1.12        4.5615   -2   1   2
                20.05          2.17        4.4423    0   0   5
                20.11          1.23        4.4277    2  -1   2
                20.54          1.25        4.3356    0   1   4
                20.76          1.92        4.2911   -1   2   2
                21.19          2.23        4.2043    1   1   2
                20.92          6.00        4.2576   -2   2   0
                21.05          4.64        4.2315    0  -2   1
                21.12          4.94        4.2174    2   0   0
                21.06          2.33        4.2300   -2   0   1
                21.28          2.08        4.1860    0   2   0
                22.99          2.16        3.8775   -1   2   3
                23.02          1.04        3.8725   -1   1   5
                23.51          2.56        3.7928    1   1   3
                23.70          1.72        3.7627    1   0   5
                23.88          1.22        3.7352    0   2   2
                23.72          1.72        3.7597    2  -2   3
                24.10         11.81        3.7019    0   0   6
                24.73          1.13        3.6083    2  -1   4
                24.61          3.30        3.6257   -2   2   3
                24.68          4.32        3.6154    0  -2   4
                24.84          1.87        3.5924    0  -1   6
                25.49          2.20        3.5018    2   0   3
                25.12          2.88        3.5532   -2   0   4
                25.16          2.36        3.5466   -1  -1   5
                26.04          1.90        3.4287    0   2   3
                25.88          1.18        3.4494    2  -2   4
                26.71          1.35        3.3440   -1   1   6
                27.83          1.03        3.2116    2  -3   1
                27.88          3.65        3.2061   -3   1   1
                28.17         12.06        3.1731    0   0   7
                28.30          5.34        3.1593    1   2   0
                28.13          2.50        3.1784   -1  -1   6
                28.35         10.64        3.1540    2  -3   2
                28.48          8.90        3.1397   -3   1   2
                28.65          4.16        3.1217    1  -2   6
                28.93          1.35        3.0921   -1   3   1
                29.34          1.72        3.0492    1   1   5
                29.21          8.15        3.0622    1   2   1
                29.00          1.51        3.0844   -1   0   7
                29.68          1.48        3.0151    1  -1   7
                29.42          1.52        3.0409    2  -3   3
                29.68          1.69        3.0154   -2   1   6
                30.65          1.17        2.9216    1   2   2
                30.19          1.06        2.9651   -3   2   3
                31.00          8.85        2.8889    2  -3   4
                31.68          1.79        2.8289    0   1   7
                31.28         11.20        2.8638   -3   1   4
                31.36          2.18        2.8567   -1  -1   7
                31.76          1.02        2.8221    0  -3   1
                32.54         10.09        2.7553    1   2   3
                32.29          1.54        2.7764    0   0   8
                32.36          1.15        2.7704   -2  -1   5
                32.94          1.26        2.7227   -3   3   2
                33.03          5.85        2.7161    2  -3   5
                33.57          1.61        2.6734   -2   3   4
                33.79          1.64        2.6566    3   0   2
                33.36          4.31        2.6894   -3   1   5
                34.30          2.69        2.6180    2  -1   7
                34.83          2.81        2.5791    1   2   4
                34.38          2.78        2.6120   -1  -2   6
                35.67          1.90        2.5203    3  -1   5
                36.05          1.86        2.4947   -2   3   5
                36.62          1.17        2.4566   -4   2   0
                38.13          1.47        2.3625    2  -3   7
                38.56          1.86        2.3372   -3   1   7
                40.35          2.56        2.2375    1   2   6
                41.27          1.07        2.1897    4  -1   3
                41.16          1.03        2.1952   -3   4   3
                41.11          2.91        2.1976    2  -3   8
                41.58          3.00        2.1741   -3   1   8
                43.49          2.12        2.0828    1   2   7
                49.00          6.46        1.8600   -5   4   0
                49.36          4.34        1.8475   -4  -1   1
                49.38          3.17        1.8469    1  -5   1
                49.30          4.18        1.8496    1  -5   2
                49.33          2.61        1.8484   -4  -1   2
                49.13          1.28        1.8554    5  -4   1
                50.36          1.55        1.8130    1   2   9
                50.49          1.23        1.8088    4   1   1
                50.61          1.23        1.8046   -1   5   1
                50.47          1.21        1.8092    5  -4   3
                50.79          1.06        1.7988   -5   4   3
                51.31          1.76        1.7816    2  -3  11
                51.22          1.08        1.7845    1  -5   5
                51.86          1.44        1.7641   -3   1  11
                60.21          1.35        1.5374   -4   6   3
                60.01          1.37        1.5420   -2  -4   6
                60.01          1.37        1.5420   -2  -4   6
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.