fireclay
Fireclay is a type of clay that can withstand high temperatures, making it ideal for use in applications like pottery, bricks, and kiln linings. It is composed mainly of alumina and silica, which contribute to its heat-resistant properties. Fireclay is often used in the production of refractory materials, which are essential in industries that involve intense heat, such as metalworking and ceramics.
This clay is typically found in deposits near coal seams and is mined for industrial use. When fired, fireclay becomes hard and durable, making it suitable for creating items like fireplace bricks and ceramic tiles. Its ability to retain shape and strength under extreme conditions makes it a valuable material in construction and manufacturing.