What was chalk used for in the ancient world?

In the ancient world, chalk was primarily used as a writing material, particularly by the Greeks and Romans, who wrote on wooden tablets coated with wax. It was also utilized in construction, where it served as a component in lime mortar, contributing to the durability of structures. Additionally, chalk was employed in art for drawing and painting, as its fine texture allowed for detailed work. Overall, its versatility made chalk a valuable resource across various aspects of ancient life.