Tapiolite-(Fe)
      Zema M, Tarantino S C, Giorgiani A
      Mineralogical Magazine 70 (2006) 319-328
      Structural changes induced by cation ordering in ferrotapiolite
      Note: Crystal Kim5_q1, treated at 750 C for 30 min
      Locality: Kimito, Finland
      _database_code_amcsd 0018702

      CELL PARAMETERS:    4.7554   4.7554   9.2281   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    208.683
      Density (g/cm3):      7.995
      MAX. ABS. INTENSITY / VOLUME**2:      282.2540072    
      RIR:     11.496
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.24          3.73        4.6140    0   0   2         2
                21.02          9.00        4.2271    1   0   1         8
                26.51        100.00        3.3626    1   1   0         4
                32.96          3.15        2.7175    1   1   2         8
                34.73         78.28        2.5828    1   0   3         8
                37.84         23.13        2.3777    2   0   0         4
                39.71          2.81        2.2696    1   1   3         8
                42.78          1.24        2.1136    2   0   2         8
                43.68          2.17        2.0724    2   1   1        16
                52.30         56.84        1.7493    2   1   3        16
                54.58         14.36        1.6813    2   2   0         4
                60.16          5.60        1.5380    0   0   6         2
                61.68         13.11        1.5038    3   1   0         8
                66.34         14.73        1.4090    3   0   3         8
                66.90         11.17        1.3987    1   1   6         8
                73.31          5.74        1.2914    2   0   6         8
                78.98          9.56        1.2122    3   2   3        16
                80.85          3.13        1.1889    4   0   0         4
                85.58          5.78        1.1348    2   2   6         8
                86.91          2.77        1.1209    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.