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
      Note: Stalex diffractometer
      _database_code_amcsd 0017872

      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:      278.1808248    
      RIR:     11.487
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.18          6.70        4.6270    0   0   2         2
                21.02         26.82        4.2269    1   0   1         8
                26.53        100.00        3.3598    1   1   0         4
                32.95          7.38        2.7187    1   1   2         8
                34.67         78.75        2.5873    1   0   3         8
                37.87         23.43        2.3758    2   0   0         4
                38.93          1.69        2.3135    0   0   4         2
                39.67          2.95        2.2722    1   1   3         8
                42.79          3.70        2.1134    2   0   2         8
                43.71          8.12        2.0710    2   1   1        16
                47.73          3.65        1.9055    1   1   4         8
                52.28         59.55        1.7499    2   1   3        16
                53.10          1.66        1.7246    1   0   5         8
                54.63         14.92        1.6799    2   2   0         4
                55.44          2.25        1.6575    2   0   4         8
                58.45          1.44        1.5791    2   2   2         8
                59.18          1.60        1.5611    3   0   1         8
                59.98          6.07        1.5423    0   0   6         2
                61.74         13.84        1.5026    3   1   0         8
                65.29          2.06        1.4291    3   1   2        16
                66.34         16.02        1.4090    3   0   3         8
                66.73         12.18        1.4017    1   1   6         8
                67.06          1.53        1.3956    2   1   5        16
                69.10          1.18        1.3593    2   2   4         8
                72.44          1.72        1.3047    3   2   1        16
                73.16          6.29        1.2936    2   0   6         8
                74.50          1.03        1.2736    1   0   7         8
                75.44          1.76        1.2601    3   1   4        16
                79.01         10.57        1.2119    3   2   3        16
                80.93          3.45        1.1879    4   0   0         4
                84.77          1.09        1.1436    4   1   1        16
                85.46          6.58        1.1361    2   2   6         8
                86.75          1.37        1.1225    2   1   7        16
                87.00          3.17        1.1199    3   3   0         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.