Armalcolite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from single crystal data of R110188
      Wechsler B A
      American Mineralogist 62 (1977) 913-920
      Cation distribution and high-temperature crystal chemistry of armalcolite
      sample Arm-E, T = 24 deg C, after heating
      _database_code_amcsd 0000593

      CELL PARAMETERS:   9.7597  9.9789  3.7478   90.000   90.000   90.000
      SPACE GROUP: Bbmm      

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Fe     0.80703   0.25000   0.00000     0.367     0.879
            Mg     0.80703   0.25000   0.00000     0.367     0.879
            Ti     0.80703   0.25000   0.00000     0.266     0.879
            Fe     0.13428   0.43494   0.00000     0.066     0.688
            Mg     0.13428   0.43494   0.00000     0.066     0.688
            Ti     0.13428   0.43494   0.00000     0.867     0.688
            O      0.22370   0.25000   0.00000     1.000     0.840
            O      0.04540   0.88410   0.00000     1.000     0.966
            O      0.31210   0.93510   0.00000     1.000     0.989

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  8 +/-  9 +/-  3
            MAX. ABS. INTENSITY / VOLUME**2:      25.55296739    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                17.78         12.18        4.9894    0   2   0
                18.18         36.55        4.8798    2   0   0
                20.26          2.32        4.3838    2   1   0
                25.46        100.00        3.4987    1   0   1
                25.53          7.81        3.4887    2   2   0
                27.01          3.77        3.3017    1   1   1
                31.22          4.22        2.8646    1   2   1
                32.58         69.15        2.7485    2   3   0
                36.58         17.85        2.4568    3   0   1
                36.84          5.82        2.4399    4   0   0
                37.30         19.79        2.4107    1   3   1
                37.71          1.72        2.3855    3   1   1
                40.62         13.20        2.2213    2   4   0
                40.95          1.26        2.2041    3   2   1
                41.18         15.22        2.1919    4   2   0
                45.92          4.31        1.9762    3   3   1
                46.14         18.67        1.9674    4   3   0
                48.59         31.70        1.8739    0   0   2
                49.33          9.71        1.8473    2   5   0
                52.26          8.06        1.7505    3   4   1
                52.30          3.16        1.7494    2   0   2
                53.74          1.56        1.7057    5   1   1
                55.23         11.74        1.6631    0   6   0
                55.68          1.37        1.6508    2   2   2
                56.24         17.14        1.6356    5   2   1
                56.58          1.67        1.6266    6   0   0
                57.40          3.83        1.6054    6   1   0
                58.64          2.77        1.5742    2   6   0
                59.69          7.76        1.5491    3   5   1
                59.72         18.67        1.5483    2   3   2
                60.27         15.59        1.5357    5   3   1
                61.76          5.27        1.5021    1   6   1
                62.49          2.23        1.4862    4   0   2
                63.68          2.01        1.4613    6   3   0
                65.13          4.25        1.4323    2   4   2
                65.54          5.76        1.4243    4   2   2
                65.64          2.69        1.4223    5   4   1
                68.08          5.28        1.3772    3   6   1
                68.25          1.03        1.3743    4   6   0
                68.58          1.89        1.3684    2   7   0
                69.24          7.71        1.3569    4   3   2
                71.46          1.55        1.3202    1   7   1
                71.75          4.55        1.3155    2   5   2
                73.02          4.01        1.2957    7   1   1
                75.16          6.17        1.2641    7   2   1
                75.38          1.67        1.2609    6   5   0
                76.60          6.67        1.2439    0   6   2
                76.94          2.39        1.2392    1   0   3
                77.74          1.02        1.2284    6   0   2
                78.44          2.47        1.2192    6   1   2
                79.52          1.71        1.2053    2   6   2
                81.16          1.35        1.1851    8   2   0
                82.76          1.45        1.1662    3   0   3
                83.20          1.91        1.1612    1   3   3
                83.98          1.50        1.1523    6   3   2
                87.91          2.36        1.1106    4   8   0
                88.47          1.56        1.1051    2   7   2
                89.69          2.13        1.0933    7   5   1
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.