Lecture
This lecture covers the ideal chemical formulas of clay minerals such as kaolinite, halloysite, pyrophyllite, montmorillonite, micas, and illite, discussing their parent rocks and the presence of different cations. It also explains the formation of clays under various weathering conditions and the process of shaping clay through techniques like formage hydroplastique. Additionally, it delves into the concepts of surface energy, capillarity, firing, sintering, and the manufacturing and shaping of glasses. The lecture concludes with a detailed explanation of the float process for making sheet glass and the effects of thermal stresses on solid materials.