Methodological reconstruction of dioctahedral 1:1 phyllosilicate polytypes

Solid-state properties of pink clay from Jequitinhonha Valley in Brazil for pre-formulation study

“…Studies have been conducted to obtain atomic coordinates and to propose a model that describes the structure of the main components of clays such as dickite (Dera, Prewitt, Japel, Bish, Johnston, 2003;Yan, Wang, 2018), nacrite (Jaafar, Rhaiem, Ben, Amara, 2016), and kaolinite ( Teixeira, Brandão, Nunes, 2017). Our results show kaolinite as the main component of the studied pink clay, 1:1 layer (Figure 4), inner hydroxyl groups (red and light pink), a tetrahedron (dark blue), and octahedron (light blue), iron atoms replaces silicate and aluminum sites in kaolinite.…”