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_q2, treated at 750 C for 80 min
      Locality: Kimito, Finland
      _database_code_amcsd 0018711

      CELL PARAMETERS:    4.7531   4.7531   9.2219   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    208.341
      Density (g/cm3):      8.009
      MAX. ABS. INTENSITY / VOLUME**2:      282.9080514    
      RIR:     11.501
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.25          4.76        4.6109    0   0   2         2
                21.03         11.26        4.2249    1   0   1         8
                26.52        100.00        3.3609    1   1   0         4
                32.98          4.01        2.7160    1   1   2         8
                34.76         78.32        2.5812    1   0   3         8
                37.86         23.12        2.3765    2   0   0         4
                39.74          2.79        2.2683    1   1   3         8
                42.81          1.57        2.1125    2   0   2         8
                43.70          2.76        2.0713    2   1   1        16
                52.33         56.79        1.7484    2   1   3        16
                53.28          1.14        1.7195    1   0   5         8
                54.61         14.36        1.6805    2   2   0         4
                60.21          5.56        1.5370    0   0   6         2
                61.71         13.11        1.5031    3   1   0         8
                66.38         14.70        1.4083    3   0   3         8
                66.95         11.15        1.3978    1   1   6         8
                67.20          1.11        1.3931    2   1   5        16
                73.36          5.76        1.2906    2   0   6         8
                79.03          9.56        1.2116    3   2   3        16
                80.90          3.13        1.1883    4   0   0         4
                85.65          5.76        1.1342    2   2   6         8
                86.96          2.77        1.1203    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.