Natural clays are fine-grained materials composed primarily of minerals, formed through the weathering of rocks over time. They are abundant in nature and can be found in various environments, such as riverbanks, lakes, and hillsides. The unique properties of clays, including plasticity and the ability to harden when fired, make them valuable for various applications. These materials are commonly used in pottery, ceramics, and construction. Different types of natural clays, such as kaolin, bentonite, and illite, have distinct characteristics that determine their suitability for specific uses. Natural clays also play a role in agriculture, helping to improve soil structure and water retention.