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 Kim14_q0, untreated
      Locality: Kimito, Finland
      _database_code_amcsd 0018707

      CELL PARAMETERS:    4.7551   4.7551   9.2810   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    209.852
      Density (g/cm3):      7.948
      MAX. ABS. INTENSITY / VOLUME**2:      279.7337621    
      RIR:     11.460
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.99          1.43        4.2320    1   0   1         8
                26.51        100.00        3.3624    1   1   0         4
                34.59         78.46        2.5932    1   0   3         8
                37.84         23.22        2.3775    2   0   0         4
                39.59          2.84        2.2766    1   1   3         8
                52.20         57.29        1.7525    2   1   3        16
                54.59         14.21        1.6812    2   2   0         4
                59.79          5.78        1.5468    0   0   6         2
                61.69         12.99        1.5037    3   1   0         8
                66.25         14.91        1.4107    3   0   3         8
                66.54         11.41        1.4053    1   1   6         8
                72.97          5.80        1.2966    2   0   6         8
                78.91          9.50        1.2132    3   2   3        16
                80.86          3.08        1.1888    4   0   0         4
                85.26          5.84        1.1383    2   2   6         8
                86.92          2.79        1.1208    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.