Tapiolite-(Fe)
      von Heidenstam O
      Arkiv for Kemi 28 (1968) 375-387
      Neutron and X-ray diffraction studies on tapiolite and
      some synthetic substances of trirutile structure
      Note: Crystal A and B combined
      _database_code_amcsd 0017875

      CELL PARAMETERS:    4.7515   4.7515   9.2540   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    208.925
      Density (g/cm3):      7.885
      MAX. ABS. INTENSITY / VOLUME**2:      277.3407061    
      RIR:     11.452
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.18          8.42        4.6270    0   0   2         2
                21.02         25.55        4.2269    1   0   1         8
                26.53        100.00        3.3598    1   1   0         4
                32.95          8.60        2.7187    1   1   2         8
                34.67         79.23        2.5873    1   0   3         8
                37.87         23.42        2.3758    2   0   0         4
                38.93          1.15        2.3135    0   0   4         2
                39.67          2.93        2.2722    1   1   3         8
                42.79          4.06        2.1134    2   0   2         8
                43.71          7.58        2.0710    2   1   1        16
                47.73          2.80        1.9055    1   1   4         8
                52.28         59.41        1.7499    2   1   3        16
                53.10          2.31        1.7246    1   0   5         8
                54.63         14.92        1.6799    2   2   0         4
                55.44          1.90        1.6575    2   0   4         8
                58.45          1.73        1.5791    2   2   2         8
                59.18          1.47        1.5611    3   0   1         8
                59.98          6.04        1.5423    0   0   6         2
                61.74         13.87        1.5026    3   1   0         8
                65.29          2.37        1.4291    3   1   2        16
                66.34         15.85        1.4090    3   0   3         8
                66.73         12.15        1.4017    1   1   6         8
                67.06          2.27        1.3956    2   1   5        16
                72.44          1.66        1.3047    3   2   1        16
                73.16          6.32        1.2936    2   0   6         8
                75.44          1.43        1.2601    3   1   4        16
                79.01         10.60        1.2119    3   2   3        16
                80.93          3.45        1.1879    4   0   0         4
                84.77          1.04        1.1436    4   1   1        16
                85.46          6.55        1.1361    2   2   6         8
                87.00          3.12        1.1199    3   3   0         4
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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.