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 Kim9_q3, treated at 750 C for 180 min
      Locality: Kimito, Finland
      _database_code_amcsd 0018706

      CELL PARAMETERS:    4.7504   4.7504   9.2549   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    208.849
      Density (g/cm3):      7.986
      MAX. ABS. INTENSITY / VOLUME**2:      281.4013027    
      RIR:     11.473
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.18          1.03        4.6274    0   0   2         2
                21.02          2.28        4.2262    1   0   1         8
                26.54        100.00        3.3590    1   1   0         4
                34.67         78.39        2.5873    1   0   3         8
                37.88         23.18        2.3752    2   0   0         4
                39.67          2.83        2.2721    1   1   3         8
                52.28         57.11        1.7497    2   1   3        16
                54.65         14.24        1.6795    2   2   0         4
                59.97          5.72        1.5425    0   0   6         2
                61.75         13.01        1.5022    3   1   0         8
                66.36         14.84        1.4087    3   0   3         8
                66.73         11.32        1.4018    1   1   6         8
                73.16          5.78        1.2936    2   0   6         8
                79.03          9.50        1.2116    3   2   3        16
                80.95          3.09        1.1876    4   0   0         4
                85.47          5.82        1.1361    2   2   6         8
                87.03          2.79        1.1197    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.