[3] Wilson M J. A Handbook of Determinative Methods in Clay Mineralogy. Glasgow and London: Blackie, 1987: 56.
[5] Balan E, Lazzeri M, Saitta A M, et al. American Mineralogist, 2005, 90(2): 50.
[6] Johnston C T, Agnew S F, Bish D L. Clays and Clay Minerals, 1990, 38(6): 573.
[7] Marc Vermeulen, Steven Saverwyns, Alexia Coudray. Dyes and Pigments, 2018, 149: 290.
[10] Shwastava R, LauerJr H V, Chase L L, et al. Physics Letters, 1971, 36A(4): 333.