Geikielite
      Wechsler B A, Von Dreele R B
      Acta Crystallographica B45 (1989) 542-549
      Structure refinements of Mg2TiO4, MgTiO3 and MgTi2O5 by time-of-flight neutron
      powder diffraction
      Locality: synthetic
      _database_code_amcsd 0009834

      CELL PARAMETERS:    5.0548   5.0548  13.8992   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    307.557
      Density (g/cm3):      3.892
      MAX. ABS. INTENSITY / VOLUME**2:      21.12890332    
      RIR:      1.768
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.16         23.01        4.6331    0   0   3         2
                21.28         25.65        4.1754    1   0   1         6
                24.03         37.71        3.7040    0   1   2         6
                32.91        100.00        2.7216    1   0   4         6
                35.52         55.54        2.5274    1   1   0         6
                40.66         51.21        2.2187    2  -1   3         6
                40.66          6.96        2.2187    1   1   3         6
                49.20         43.10        1.8520    0   2   4         6
                50.47          2.29        1.8083    1   0   7         6
                53.67         35.26        1.7077    2  -1   6         6
                53.67         26.59        1.7077    1   1   6         6
                55.97          3.09        1.6430    3  -1   1         6
                57.03         10.04        1.6149    0   1   8         6
                57.23          2.20        1.6096   -1   3   2         6
                62.14         13.45        1.4939    2   1   4         6
                62.14         20.58        1.4939    3  -1   4         6
                63.23          2.75        1.4706    0   2   7         6
                63.78         40.35        1.4592    3   0   0         6
                67.27          1.22        1.3918    0   3   3         6
                67.27          1.37        1.3918    3   0   3         6
                69.02          2.55        1.3608    2   0   8         6
                71.17         12.34        1.3247    1   0  10         6
                71.61          4.38        1.3178    1   1   9         6
                74.67          1.71        1.2711    2   1   7         6
                75.19          6.38        1.2637    2   2   0         6
                78.45          3.49        1.2192    2   2   3         6
                79.19          1.13        1.2095    1   3   1         6
                80.09          2.68        1.1982   -1   3   8         6
                80.09          1.79        1.1982    1   2   8         6
                80.27          2.02        1.1960    3   1   2         6
                82.15          6.00        1.1733    0   2  10         6
                84.54          5.90        1.1462    1   3   4         6
                84.54          2.94        1.1462   -1   4   4         6
                88.04          4.54        1.1094    4  -2   6         6
                88.04          5.69        1.1094    2   2   6         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.