Dear Ebrahim

Please try Weber et al. (2014) in Clay Minerals 49, pp.:495-498.

Good luck

John

Montmorillonite tends to be concentrate in the grain size < 2µm. Kaolinite spans a wide grain size range. Dickit and nacrite tend to be larger. It is not only a single clay mineral plate but the aggregates which count, e.g. concerdina textures, flint clay etc.

H.G.Dill

Dear Harald

Thank you very much.

Dear John

Thank you very much, I will definitely read them.