Maya Blue
      Giustetto R, Levy D, Chiari G
      European Journal of Mineralogy 18 (2006) 629-640
      Crystal structure refinement of Maya Blue pigment prepared with deuterated
      indigo, using neutron powder diffraction
      Locality: starting palygorskite from Chapas, Mexico
      _database_code_amcsd 0007166

      CELL PARAMETERS:   13.3380  17.7950   5.2650   90.000  105.460   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1204.430
      Density (g/cm3):      2.303
      MAX. ABS. INTENSITY / VOLUME**2:      16.82420658    
      RIR:      2.378
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 8.49        100.00       10.4206    1   1   0         4
                 9.94          2.30        8.8975    0   2   0         2
                13.78          4.55        6.4277    2   0   0         2
                16.46          8.04        5.3860    1   3   0         4
                17.48          1.34        5.0745    0   0   1         2
                19.96          3.71        4.4488    0   4   0         2
                21.06          1.98        4.2177    1   1   1         4
                21.33          3.32        4.1660    3   1   0         4
                22.69          1.77        3.9183   -1   3   1         4
                24.33          1.33        3.6580    2   4   0         4
                27.05         10.74        3.2966    2   2   1         4
                27.76          5.27        3.2138    4   0   0         2
                27.81          3.16        3.2075   -3   3   1         4
                28.64          1.71        3.1165   -4   0   1         2
                30.40          5.97        2.9404   -1   5   1         4
                32.53          1.40        2.7523    1   5   1         4
                34.37          1.38        2.6095   -2   0   2         2
                34.43          2.41        2.6052    4   4   0         4
                34.53          1.32        2.5976   -1   1   2         4
                35.03          1.31        2.5615   -5   1   1         4
                35.38          1.95        2.5372    0   0   2         2
                35.97          2.12        2.4970   -2   6   1         4
                36.37          1.74        2.4699   -3   1   2         4
                36.84          1.47        2.4400    0   2   2         4
                38.92          2.01        2.3139   -4   0   2         2
                39.18          1.37        2.2991   -3   3   2         4
                39.99          3.20        2.2544    3   5   1         4
                41.61          1.15        2.1707    2   0   2         2
                43.03          2.96        2.1021    2   8   0         4
                43.20          1.11        2.0941   -5   1   2         4
                43.22          1.69        2.0934   -5   5   1         4
                48.34          1.40        1.8830    4   6   1         4
                50.83          1.57        1.7963    5   5   1         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.