Natural stone flooring is tile cut directly from stone blocks naturally formed over time instead of man-made tile that is manufactured by combining various substances and chemicals such as porcelain or ceramic tile. The most common types of natural stone flooring are marble, travertine, limestone, granite, quartzite, slate, and sandstone, and have been used for thousands of years. Natural stone flooring is also commonly used to create a sense of space, often achieved through the seamless integration of both interior and exterior areas using the same material.