Calzirtite
      Rastsvetaeva R K, Pushcharovskii D Y, Spiridonov E M, Gekimyants V M
      Crystallography Reports 40 (1995) 746-748
      Crystal structure of ordered calzirtite Ca2Zr5Ti2O16
      Locality: Zelenets mine of the South Ural massif's Kusa titanium-
      magnetite deposit, Russia
      _database_code_amcsd 0019484

      CELL PARAMETERS:   15.1890  15.1890  10.1110   90.000   90.000   90.000
      SPACE GROUP: I4_1/acd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   2332.666
      Density (g/cm3):      5.056
      MAX. ABS. INTENSITY / VOLUME**2:      106.9027330    
      RIR:      6.884
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.65         14.82        7.5945    2   0   0         4
                19.41          2.87        4.5741    1   1   2         8
                21.11          2.20        4.2083    2   0   2         8
                22.87          1.90        3.8887    3   2   1        16
                25.58          6.12        3.4821    3   1   2        16
                25.74          5.25        3.4613    4   1   1        16
                26.24          1.59        3.3964    4   2   0         8
                30.60        100.00        2.9217    3   3   2         8
                32.97          1.47        2.7168    5   2   1        16
                35.46         11.79        2.5315    6   0   0         4
                35.51          6.66        2.5278    0   0   4         2
                37.45          1.12        2.4016    6   2   0         8
                38.89          1.61        2.3156    5   3   2        16
                39.95          1.04        2.2565    4   3   3        16
                40.32          2.23        2.2369    3   1   4        16
                41.76          4.00        2.1630    5   2   3        16
                45.19          1.27        2.0064    6   1   3        16
                46.72          1.14        1.9443    6   4   2        16
                46.83          2.53        1.9398    5   4   3        16
                49.20          1.99        1.8521    7   4   1        16
                51.02         13.40        1.7900    6   6   0         4
                51.06         29.71        1.7887    6   0   4         8
                52.56          1.21        1.7411    6   2   4        16
                55.89          1.26        1.6452    2   0   6         8
                55.91          1.09        1.6445    7   4   3        16
                56.60          1.20        1.6260    9   2   1        16
                58.01          2.38        1.5900    8   5   1        16
                60.67         15.72        1.5263    9   3   2        16
                60.75          9.68        1.5247    3   3   6         8
                63.70          4.16        1.4608    6   6   4         8
                64.10          1.11        1.4528    8   5   3        16
                64.13          1.30        1.4521    7   2   5        16
                67.98          1.29        1.3791   10   1   3        16
                69.86          1.38        1.3464   11   2   1        16
                75.04          2.15        1.2658   12   0   0         4
                75.17          1.59        1.2639    0   0   8         2
                83.17          1.76        1.1614    9   9   2         8
                83.24          4.60        1.1607    9   3   6        16
                85.84          1.05        1.1321   12   6   0         8
                85.87          1.20        1.1318   12   0   4         8
                85.96          1.71        1.1308    6   0   8         8
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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.