Maya Blue
      Chiari G, Giustetto R, Ricchiardi G
      European Journal of Mineralogy 15 (2003) 21-33
      Crystal structure refinements of palygorskite and Maya Blue from molecular
      modeling and powder synchrotron diffraction
      Sample: Mp+indigo
      _database_code_amcsd 0006955

      CELL PARAMETERS:   13.3800  17.8850   5.2500   90.000  106.810   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1202.648
      Density (g/cm3):      2.311
      MAX. ABS. INTENSITY / VOLUME**2:      22.57324661    
      RIR:      3.181
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 8.49        100.00       10.4133    1   1   0         4
                 9.89          5.66        8.9425    0   2   0         2
                13.83          4.00        6.4041    2   0   0         2
                16.40          1.94        5.4049    1   3   0         4
                17.65          4.19        5.0257    0   0   1         2
                19.86         16.60        4.4713    0   4   0         2
                21.40          7.96        4.1527    3   1   0         4
                21.49          9.57        4.1342   -2   2   1         4
                22.64          3.01        3.9272   -1   3   1         4
                23.64          3.35        3.7629   -3   1   1         4
                24.28          4.16        3.6661    2   4   0         4
                25.63          4.84        3.4750    1   3   1         4
                27.41          9.06        3.2538    2   2   1         4
                27.58          6.02        3.2337   -3   3   1         4
                27.64          3.15        3.2271   -2   4   1         4
                27.86          8.73        3.2021    4   0   0         2
                28.39          1.91        3.1438   -4   0   1         2
                30.29          1.96        2.9507   -1   5   1         4
                32.64          2.50        2.7438    1   5   1         4
                34.22          6.81        2.6202   -3   5   1         4
                34.36          2.39        2.6099   -2   0   2         2
                34.45          8.77        2.6033    4   4   0         4
                34.69          3.87        2.5859    3   3   1         4
                34.70          1.09        2.5853   -1   1   2         4
                35.00          4.90        2.5638    0   6   1         4
                35.73          8.46        2.5128    0   0   2         2
                35.84          2.36        2.5054   -2   2   2         4
                36.20          1.02        2.4811   -3   1   2         4
                39.97          1.00        2.2558   -4   2   2         4
                41.44          1.47        2.1792    1   3   2         4
                41.76          1.40        2.1631   -4   6   1         4
                42.47          3.03        2.1287   -3   7   1         4
                42.71          2.76        2.1172    4   4   1         4
                44.35          1.13        2.0426    0   8   1         4
                47.23          1.57        1.9245   -6   0   2         2
                47.31          1.18        1.9212    0   6   2         4
                50.11          1.19        1.8203    7   1   0         4
                50.27          1.23        1.8151   -7   3   1         4
                50.65          2.02        1.8022    1   9   1         4
                51.71          2.38        1.7677   -6   4   2         4
                51.77          1.92        1.7658   -3   9   1         4
                52.38          1.83        1.7466    4   0   2         2
                54.57          1.85        1.6818   -7   5   1         4
                54.97          1.00        1.6703    0   8   2         4
                56.57          2.33        1.6269    4   4   2         4
                59.04          1.33        1.5646   -3   5   3         4
                60.38          2.24        1.5330    6   6   1         4
                60.62          1.52        1.5275   -7   7   1         4
                62.30          1.46        1.4904    0  12   0         2
                63.84          1.62        1.4581   -8   6   1         4
                67.90          1.05        1.3804   -1  11   2         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.