👉 Petrography is a branch of chemistry that involves studying the structure and properties of rocks, minerals, and other materials. It focuses on understanding how these materials form, transform, and change over time through processes such as weathering, erosion, and chemical reactions. Petrography is often used to identify mineral deposits and to study the physical properties of various materials. Examples of common types of petrography include crystal structure analysis (e.g., monoclinic, triclinic,