Commercial bentonite from the Kopernica deposit (Tertiary, Slovakia): a petrographic and mineralogical approach.Published in:Clay Minerals, 2016, v. 51, n. 1, p. 97, doi. 10.1180/claymin.2016.051.1.09By:Górniak, K.;Szydłak, T.;Gaweł, A.;Klimek, A.;Tomczyk, A.;Sulikowski, B.;Olejniczak, Z.;Motyka, J.Publication type:Article