Birnessite
      Lopano C L, Heaney P J, Post J E, Hanson J, Komarneni S
      American Mineralogist 92 (2007) 380-387
      Time-resolved structural analysis of K-and Ba-exchange reactions with synthetic
      Na-birnessite using synchrotron X-ray diffraction
      Locality: synthetic
      Sample: K-birnessite
      _database_code_amcsd 0004277

      CELL PARAMETERS:    5.1371   2.8476   7.2131   89.960  100.750   89.702
      SPACE GROUP: C-1       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    103.663
      Density (g/cm3):      3.574
      MAX. ABS. INTENSITY / VOLUME**2:      61.56156822    
      RIR:      5.608
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.49        100.00        7.0865    0   0   1         2
                25.13         39.08        3.5433    0   0   2         2
                35.47          5.53        2.5311   -2   0   1         2
                35.58          3.98        2.5234    2   0   0         2
                36.31          5.03        2.4743   -1   1   0         2
                37.23         11.56        2.4149   -1  -1   1         2
                37.37          7.78        2.4066   -1   1   1         2
                39.49          3.96        2.2821    1   1   1         2
                40.10         14.87        2.2484    2   0   1         2
                42.49          4.57        2.1274   -1  -1   2         2
                42.58         10.68        2.1234   -1   1   2         2
                46.69          1.91        1.9455    1  -1   2         2
                47.57          2.84        1.9115   -2   0   3         2
                48.01          4.67        1.8952    2   0   2         2
                50.86          7.90        1.7953   -1  -1   3         2
                50.90          4.80        1.7939   -1   1   3         2
                51.59          1.86        1.7716    0   0   4         2
                56.08          3.57        1.6399    1   1   3         2
                56.29          1.36        1.6344    1  -1   3         2
                57.74          1.55        1.5968   -2   0   4         2
                58.27          3.41        1.5834    2   0   3         2
                61.46          1.35        1.5086   -1  -1   4         2
                61.48          1.74        1.5083   -1   1   4         2
                63.29          1.59        1.4693   -3  -1   1         2
                63.61          1.75        1.4627   -3   1   1         2
                64.14          2.43        1.4519    3   1   0         2
                64.49          2.40        1.4450   -3   1   0         2
                65.45          2.36        1.4259   -3  -1   2         2
                65.57          2.03        1.4238    0   2   0         2
                65.74          1.74        1.4204   -3   1   2         2
                67.02          1.09        1.3963    0   2   1         2
                67.07          1.64        1.3954    0  -2   1         2
                67.66          1.26        1.3848    1   1   4         2
                67.87          1.73        1.3810    1  -1   4         2
                69.78          1.74        1.3477   -2   0   5         2
                81.09          1.03        1.1860    1   1   5         2
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.