Stone Type: Granite
Granite is an igneous rock that forms under the ground by the slow cooling of magma. It is higher in silica content than diorite. The coarse structure of granite makes it unsuitable for refined percussion flaking, but it was often shaped by pecking and grinding into durable tools like stone axes. It was widely used for making sculptures and as building stone, and is familiar today as a popular material for headstones and countertops.