Quartzite is originated from sandstone. Through a process of high heating and pressurization, sandstone is transformed into Quartzite. Quartzite is hard and durable and almost salt-free natural stone as granite. It makes quartzite much better choice for pool coping than slate with its beautiful texture. Its tiles often have a sparkling texture as individual quartz pieces recrystallize in high heat. Its incredible strength makes it ideal for flooring and wall cladding application.