Slate stone

Slate has many uses such as roofing shingles and coverings, external and internal flooring, garden decorations, and cladding.
Slate floors are commonly laid in outdoor porches, basements, bathrooms, and kitchens. Internal slate floors are durable, versatile, and elegant. 
Slatestone is used in various residential and commercial landscaping projects for its weather-resistant and pollution-resistant properties.