Armalcolite
      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
      Sample: T = 1773
      _database_code_amcsd 0009836

      CELL PARAMETERS:    9.7492   9.9896   3.7460   90.000   90.000   90.000
      SPACE GROUP: Bbmm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    364.825
      Density (g/cm3):      3.641
      MAX. ABS. INTENSITY / VOLUME**2:      21.60455518    
      RIR:      1.932
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.76         21.21        4.9948    0   2   0         2
                18.20         32.05        4.8746    2   0   0         2
                20.27          3.15        4.3809    2   1   0         4
                25.47        100.00        3.4968    1   0   1         4
                25.53          6.95        3.4886    2   2   0         4
                27.02          2.44        3.3004    1   1   1         8
                31.22          7.49        2.8645    1   2   1         8
                32.57         65.01        2.7496    2   3   0         4
                36.61         12.69        2.4547    3   0   1         4
                36.88          5.60        2.4373    4   0   0         2
                37.29         12.01        2.4114    1   3   1         8
                40.59         12.93        2.2227    2   4   0         4
                41.21         18.84        2.1904    4   2   0         4
                45.93          5.36        1.9759    3   3   1         8
                46.16         18.49        1.9667    4   3   0         4
                48.61         33.39        1.8730    0   0   2         2
                49.29         12.93        1.8487    2   5   0         4
                52.15          1.82        1.7538    0   2   2         4
                52.25          9.56        1.7507    3   4   1         8
                52.33          2.85        1.7484    2   0   2         4
                52.77          1.47        1.7347    1   5   1         8
                53.79          1.58        1.7042    5   1   1         8
                55.17         11.22        1.6649    0   6   0         2
                55.70          1.21        1.6502    2   2   2         8
                56.29         17.52        1.6344    5   2   1         8
                56.65          1.16        1.6249    6   0   0         2
                57.46          3.73        1.6038    6   1   0         4
                58.59          2.66        1.5756    2   6   0         4
                59.67          8.97        1.5496    3   5   1         8
                59.74         18.66        1.5480    2   3   2         8
                60.30         15.67        1.5349    5   3   1         8
                61.71          4.32        1.5032    1   6   1         8
                62.54          2.39        1.4851    4   0   2         4
                63.73          2.31        1.4603    6   3   0         4
                65.13          4.24        1.4323    2   4   2         8
                65.58          7.50        1.4235    4   2   2         8
                65.66          2.04        1.4219    5   4   1         8
                68.04          3.35        1.3779    3   6   1         8
                68.51          2.83        1.3696    2   7   0         4
                69.27          7.84        1.3563    4   3   2         8
                71.39          2.48        1.3213    1   7   1         8
                71.74          6.46        1.3157    2   5   2         8
                72.25          1.14        1.3077    5   5   1         8
                73.11          4.37        1.2944    7   1   1         8
                75.23          6.84        1.2630    7   2   1         8
                75.40          2.13        1.2606    6   5   0         4
                76.56          6.59        1.2444    0   6   2         4
                76.99          2.63        1.2385    1   0   3         4
                78.52          2.55        1.2182    6   1   2         8
                78.74          1.04        1.2154    7   3   1         8
                79.49          1.68        1.2057    2   6   2         8
                81.26          1.33        1.1839    8   2   0         4
                82.81          1.31        1.1656    3   0   3         4
                83.23          1.63        1.1608    1   3   3         8
                84.04          1.81        1.1516    6   3   2         8
                87.85          2.96        1.1113    4   8   0         4
                88.42          2.48        1.1056    2   7   2         8
                89.73          2.73        1.0928    7   5   1         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.