Geikielite
      Liferovich R P, Mitchell R H
      Physics and Chemistry of Minerals 32 (2005) 442-449
      Rhombohedral ilmenite group nickel titanates with Zn, Mg, and Mn:
      synthesis and crystal structures
      _database_code_amcsd 0008980

      CELL PARAMETERS:    5.0544   5.0544  13.8737   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    306.946
      Density (g/cm3):      4.717
      MAX. ABS. INTENSITY / VOLUME**2:      43.10337995    
      RIR:      2.976
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.04         29.30        3.7019    0   1   2         6
                32.95        100.00        2.7185    1   0   4         6
                35.52         66.33        2.5272    1   1   0         6
                38.95          1.23        2.3123    0   0   6         2
                40.68          7.57        2.2177    2  -1   3         6
                40.68         17.83        2.2177    1   1   3         6
                43.35          1.69        2.0872    2   0   2         6
                49.23         37.00        1.8509    0   2   4         6
                53.73         28.96        1.7060    2  -1   6         6
                53.73         20.19        1.7060    1   1   6         6
                57.13          8.64        1.6123    0   1   8         6
                57.25          1.90        1.6093   -1   3   2         6
                62.16         17.66        1.4933    3  -1   4         6
                62.16         12.83        1.4933    2   1   4         6
                63.79         32.06        1.4591    3   0   0         6
                69.11          2.75        1.3592    2   0   8         6
                71.31         10.90        1.3225    1   0  10         6
                71.72          1.57        1.3160    1   1   9         6
                75.19          6.64        1.2636    2   2   0         6
                78.46          1.19        1.2189    4  -2   3         6
                80.18          2.37        1.1971   -1   3   8         6
                80.18          1.93        1.1971    1   2   8         6
                80.28          1.30        1.1959    3   1   2         6
                82.28          5.96        1.1718    0   2  10         6
                84.56          5.44        1.1459    1   3   4         6
                84.56          3.43        1.1459   -1   4   4         6
                88.09          3.62        1.1088    4  -2   6         6
                88.09          4.88        1.1088    2   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.