Gillespite
      Hazen R M, Burnham C W
      American Mineralogist 59 (1974) 1166-1176
      The crystal structures of gillespite I and II: A structure determination at
      high pressure
      P = 1 atm

      CELL PARAMETERS:   7.5164  7.5164 16.0768   90.000   90.000   90.000
      SPACE GROUP: P4/ncc    
      X-RAY WAVELENGTH:     1.541838
      MAX. ABS. INTENSITY / VOLUME**2:      31.16186282    
               2-THETA      INTENSITY    D-SPACING   H   K   L
                11.01         36.88        8.0384    0   0   2
                16.14          1.78        5.4902    1   0   2
                16.68         11.19        5.3149    1   1   0
                20.03         49.84        4.4334    1   1   2
                22.12          5.40        4.0192    0   0   4
                25.13         24.80        3.5443    1   0   4
                26.18        100.00        3.4045    2   0   2
                27.10          6.77        3.2903    2   1   1
                27.83         65.72        3.2058    1   1   4
                28.79         31.87        3.1012    2   1   2
                32.62         31.90        2.7451    2   0   4
                33.44          3.92        2.6795    0   0   6
                33.73         35.99        2.6574    2   2   0
                35.58         13.08        2.5231    2   2   2
                37.59         30.16        2.3926    1   1   6
                37.60          2.97        2.3920    3   0   2
                37.85          8.23        2.3769    3   1   0
                38.28          1.21        2.3513    3   1   1
                39.54         17.90        2.2793    3   1   2
                40.70          8.12        2.2167    2   2   4
                41.38          1.65        2.1817    2   0   6
                43.18          3.02        2.0953    2   1   6
                43.79          2.10        2.0674    3   2   1
                44.27         23.32        2.0459    3   1   4
                44.92          1.92        2.0179    3   2   2
                45.12          4.88        2.0096    0   0   8
                46.79          7.10        1.9414    1   0   8
                47.57          1.50        1.9113    3   1   5
                48.23          2.91        1.8868    2   2   6
                48.43          7.39        1.8797    1   1   8
                48.44         18.39        1.8791    4   0   0
                49.24          7.46        1.8506    3   2   4
                49.84          4.12        1.8298    4   0   2
                50.38          2.11        1.8114    4   1   1
                51.39         23.49        1.7781    3   1   6
                51.57          3.18        1.7722    2   0   8
                52.92          3.35        1.7301    3   3   2
                54.60          6.90        1.6807    4   2   0
                55.34          2.59        1.6602    4   1   4
                55.89         18.01        1.6451    4   2   2
                56.79         10.71        1.6211    3   3   4
                57.50          2.81        1.6029    2   2   8
                59.63          2.78        1.5506    4   2   4
                60.13          1.31        1.5388    1   1  10
                60.14          3.03        1.5385    4   0   6
                60.31          6.86        1.5346    3   1   8
                62.00          1.63        1.4968    4   3   1
                62.87         12.26        1.4781    2   0  10
                62.89          4.52        1.4778    3   3   6
                62.89          1.59        1.4777    4   3   2
                64.24          3.67        1.4499    5   1   2
                64.39          5.28        1.4468    3   2   8
                65.70          1.63        1.4213    5   1   3
                66.39          1.75        1.4080    5   0   4
                67.70          9.66        1.3839    5   1   4
                68.17          2.00        1.3755    2   2  10
                68.19          4.57        1.3752    5   2   2
                68.34          4.03        1.3725    4   0   8
                69.63          2.21        1.3502    4   1   8
                70.26          2.25        1.3397    0   0  12
                70.75          1.33        1.3317    3   1  10
                70.92          2.25        1.3289    3   3   8
                70.93          2.14        1.3287    4   4   0
                72.04          1.63        1.3109    4   4   2
                73.30          5.86        1.2915    5   1   6
                73.45          2.39        1.2893    4   2   8
                73.46          1.65        1.2891    5   3   0
                74.56          1.97        1.2728    5   3   2
                75.96          1.22        1.2527    6   0   0
                76.84          1.52        1.2405    5   1   7
                77.04          2.33        1.2378    6   0   2
                77.81          2.38        1.2275    5   3   4
                79.65          1.92        1.2038    5   0   8
                80.24          5.45        1.1963    2   2  12
                80.87          2.76        1.1886    5   1   8
                80.88          1.52        1.1884    6   2   0
                81.95          3.19        1.1757    6   2   2
                82.68          1.48        1.1671    3   1  12
                83.15          7.32        1.1618    4   2  10
                83.16          6.80        1.1616    5   3   6
                85.13          2.74        1.1397    6   2   4
                86.76          1.21        1.1224    1   1  14
                88.14          1.62        1.1084    4   4   8
                89.93          2.15        1.0909    4   0  12
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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.