Geikielite
      Liferovich R P, Mitchell R H
      The Canadian Mineralogist 44 (2006) 1099-1107
      The pyrophanite-geikielite solid-solution series: crystal structures of the
      Mn1-xMgxTiO3 series (0 < x < 0.7)
      Sample: XMg = 0.6
      Locality: synthetic
      _database_code_amcsd 0006107

      CELL PARAMETERS:    5.0921   5.0921  14.0532   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    315.573
      Density (g/cm3):      4.180
      MAX. ABS. INTENSITY / VOLUME**2:      29.09043454    
      RIR:      2.266
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.94          7.32        4.6844    0   0   3         2
                21.11          5.42        4.2076    1   0   1         6
                23.82         33.07        3.7352    0   1   2         6
                32.59        100.00        2.7479    1   0   4         6
                35.25         61.45        2.5461    1   1   0         6
                40.32         23.54        2.2370    2  -1   3         6
                40.32         10.25        2.2370    1   1   3         6
                42.99          1.01        2.1038    2   0   2         6
                48.76         40.25        1.8676    0   2   4         6
                53.13         30.68        1.7238    2  -1   6         6
                53.13         21.08        1.7238    1   1   6         6
                55.52          1.01        1.6552    3  -1   1         6
                56.38         10.11        1.6319    0   1   8         6
                56.76          2.04        1.6218   -1   3   2         6
                61.59         12.74        1.5059    2   1   4         6
                61.59         19.64        1.5059    3  -1   4         6
                63.26         33.90        1.4700    3   0   0         6
                68.26          2.73        1.3739    2   0   8         6
                70.30         11.11        1.3390    1   0  10         6
                70.78          3.80        1.3311    1   1   9         6
                74.54          6.77        1.2730    2   2   0         6
                77.74          1.39        1.2285    2   2   3         6
                79.22          2.70        1.2091   -1   3   8         6
                79.22          1.99        1.2091    1   2   8         6
                79.55          1.71        1.2050    3   1   2         6
                81.16          5.75        1.1851    0   2  10         6
                83.74          3.03        1.1551   -1   4   4         6
                83.74          5.89        1.1551    1   3   4         6
                87.14          4.76        1.1185    2   2   6         6
                87.14          3.58        1.1185    4  -2   6         6
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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.