Citation: Chiari, G.; Giustetto, R.; Ricchiardi, G. (2003). Crystal structure refinements of palygorskite and Maya Blue from molecular modelling and powder synchrotron diffraction. European Journal of Mineralogy (1,1989-), 15, pp. 21-33.
Formula: C0.72 H8.37 Al Mg N0.09 O14.55 Si4
Chemical name:(((Mg Al) (Si4 O10 (H2 O)2 (O H))) (H2 O)1.46) (C16 N2 O2 H10)0.045