Murray and Lyons
(1956) found that the poorly crystallized kaolinite was composed
of thinner plates and therefore more individual edges and corners
were available to initiate frictions resulting in higher viscosity. In
particular, the complex surface morphology of the poorly crystallized
kaolinite resists the transformation of loose edge-face structures
to dense face–face structures under introduced shear forces
also contributing to the relatively higher apparent viscosity of
the poorly crystallized kaolinite suspension (Du et al., 2010)