Fe2 O9 Pb1.01 Sr4
      Caignaert V, Daniel P, Nguyen N, Ducouret A, Groult D, Raveau B
      Journal of Solid State Chemistry 112 (1994) 126-131
      Structure refinement of the 0201-1201 intergrowth-type ferrite PbSr4Fe2O9:
      powder neutron diffraction and Mossbauer spectroscopy studies
      _cod_database_code 1001606
      _database_code_amcsd 0013824

      CELL PARAMETERS:    3.8484   3.8484  30.6838   90.000   90.000   90.000
      SPACE GROUP: I4/mmm    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    454.444
      Density (g/cm3):      5.958
      MAX. ABS. INTENSITY / VOLUME**2:      125.6584798    
      RIR:      6.867
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 5.76         31.31       15.3419    0   0   2         2
                11.54          2.68        7.6709    0   0   4         2
                17.34         12.11        5.1140    0   0   6         2
                23.19          1.04        3.8355    0   0   8         2
                23.29          5.43        3.8185    1   0   1         8
                24.72         22.71        3.6019    1   0   3         8
                27.35         16.42        3.2604    1   0   5         8
                29.10         10.50        3.0684    0   0  10         2
                30.92        100.00        2.8920    1   0   7         8
                32.91         65.05        2.7213    1   1   0         4
                33.44          2.26        2.6794    1   1   2         8
                34.99          5.81        2.5647    1   1   4         8
                35.09          3.22        2.5570    0   0  12         2
                41.19         14.30        2.1917    0   0  14         2
                44.50         19.05        2.0359    1   1  10         8
                45.06          8.75        2.0120    1   0  13         8
                47.24         28.22        1.9242    2   0   0         4
                48.88          4.81        1.8634    1   1  12         8
                50.69          1.23        1.8010    2   0   6         8
                53.70         12.68        1.7069    1   1  14         8
                54.03          3.04        1.6972    2   1   3        16
                55.45          2.51        1.6571    2   1   5        16
                56.30          9.36        1.6341    1   0  17         8
                56.45          3.96        1.6302    2   0  10         8
                57.53         25.83        1.6020    2   1   7        16
                60.19          1.39        1.5375    2   0  12         8
                60.33          2.22        1.5342    0   0  20         2
                62.36          3.01        1.4891    1   0  19         8
                64.44          9.34        1.4460    2   0  14         8
                67.33          3.14        1.3906    2   1  13        16
                68.72          1.20        1.3660    1   0  21         8
                69.03          5.93        1.3606    2   2   0         4
                70.46          3.28        1.3364    1   1  20         8
                76.48          5.05        1.2456    2   1  17        16
                77.54          4.40        1.2312    3   0   7         8
                78.61          5.49        1.2170    3   1   0         8
                79.98          2.50        1.1996    2   0  20         8
                81.78          1.69        1.1777    2   1  19        16
                83.55          2.87        1.1571    1   1  24         8
                83.66          2.88        1.1560    2   2  14         8
                85.92          2.47        1.1313    3   1  10        16
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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.