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 Kim19_q1, treated at 750 C for 40 min
      Locality: Kimito, Finland
      _database_code_amcsd 0018710

      CELL PARAMETERS:    4.7516   4.7516   9.2258   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    208.297
      Density (g/cm3):      8.009
      MAX. ABS. INTENSITY / VOLUME**2:      282.9404727    
      RIR:     11.503
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.24          3.81        4.6129    0   0   2         2
                21.03          9.32        4.2243    1   0   1         8
                26.53        100.00        3.3599    1   1   0         4
                32.98          3.31        2.7158    1   1   2         8
                34.75         78.13        2.5817    1   0   3         8
                37.87         23.15        2.3758    2   0   0         4
                39.73          2.81        2.2685    1   1   3         8
                42.81          1.33        2.1121    2   0   2         8
                43.71          2.34        2.0708    2   1   1        16
                52.33         56.86        1.7482    2   1   3        16
                54.63         14.30        1.6799    2   2   0         4
                60.18          5.61        1.5376    0   0   6         2
                61.74         13.06        1.5026    3   1   0         8
                66.39         14.76        1.4081    3   0   3         8
                66.92         11.18        1.3982    1   1   6         8
                73.34          5.74        1.2909    2   0   6         8
                79.05          9.52        1.2113    3   2   3        16
                80.93          3.11        1.1879    4   0   0         4
                85.64          5.78        1.1343    2   2   6         8
                87.00          2.78        1.1200    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.