Petrography is the branch of geology that focuses on the detailed description and classification of rocks. It involves studying the mineral composition, texture, and structure of rocks to understand their origin and history. Petrographers often use thin sections of rock samples under a microscope to analyze their features. This scientific discipline plays a crucial role in various fields, including petrology, geology, and archaeology. By examining rocks, petrographers can provide insights into geological processes, environmental conditions, and even the age of rock formations. This information is essential for resource exploration and understanding Earth's history.