Zirconolite
      Grey I E, Mumme W G, Ness T J, Roth R S, Smith K L
      Journal of Solid State Chemistry 174 (2003) 285-295
      Structural relations between weberite and zirconolite polytypes - refinements
      of doped 3T and 4M Ca2Ta2O7 and 3T CaZrTi2O7
      Locality: synthetic
      Sample: T = 123 K
      Note: polytype Zirconolite-3T

      CELL PARAMETERS:   7.2280  7.2280 16.8050   90.000   90.000  120.000
      SPACE GROUP: P3_121    
      X-RAY WAVELENGTH:     1.541838
      MAX. ABS. INTENSITY / VOLUME**2:      75.25255573    
               2-THETA      INTENSITY    D-SPACING   H   K   L
                14.15          1.79        6.2596    1   0   0
                15.82          6.44        5.6017    0   0   3
                21.29          4.01        4.1743    1   0   3
                25.54          5.50        3.4884    0   1   4
                26.85          4.65        3.3199    1   1   2
                29.02          5.59        3.0769    0   2   1
                30.48         99.82        2.9330    2   0   2
                31.95         26.41        2.8008    0   0   6
                35.78         23.63        2.5099    0   2   4
                39.34          9.81        2.2905    2   0   5
                39.57          1.09        2.2774    2   1   2
                41.43          1.84        2.1795    2   1   3
                43.72          1.19        2.0706    3   0   1
                44.75          1.90        2.0250    3   0   2
                45.35          1.95        1.9997    1   1   7
                45.55          1.03        1.9915    1   0   8
                47.75          2.69        1.9049    0   2   7
                50.24          2.49        1.8161    1   1   8
                50.50          2.73        1.8074    2   1   6
                50.51         32.26        1.8070    2   2   0
                52.46         22.62        1.7442    2   0   8
                53.27          4.60        1.7197    2   2   3
                54.45          1.02        1.6851    1   2   7
                57.43          1.76        1.6045    3   1   4
                58.62          1.05        1.5749    3   0   7
                59.97          1.06        1.5425    1   3   5
                60.15         11.42        1.5385    0   4   2
                60.78          1.24        1.5238    1   1  10
                61.02         16.81        1.5184    2   2   6
                62.76          7.06        1.4806    0   2  10
                62.99          1.13        1.4756    1   3   6
                63.43          5.89        1.4665    4   0   4
                65.83          1.54        1.4187    0   4   5
                66.80          1.11        1.4004    0   0  12
                69.13          1.31        1.3589    2   3   4
                75.80          5.03        1.2549    0   4   8
                82.31          2.52        1.1714    4   2   2
                84.62          2.50        1.1452    4   0  10
                85.22          1.72        1.1387    2   4   4
                86.92          1.35        1.1208    2   0  14
                88.29          2.84        1.1069    2   2  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.