Why is Cornwall rich in minerals?

Cornwall is rich in minerals due to its geological history, particularly its location on the ancient Variscan orogenic belt, which formed during the collision of tectonic plates. This region experienced significant volcanic activity and hydrothermal processes, leading to the concentration of various minerals, including tin, copper, and tungsten. The unique granite formations in Cornwall also contributed to the mineral diversity, as they acted as a source of mineral-rich fluids. These factors combined have made Cornwall a historically significant area for mining and mineral extraction.