S L A T E is a metamorphic rock that is dense, strong, acid resistant and non-absorptive. Slate comes in a variety of colors, including black, gray, green, purple and pink. Slate can be worked with a natural cleft surface or to a machined finish by gauging, honing and polishing. Most commonly used for interior floor surfaces or exterior landscaping, slate also serves as a durable and stain resistant counter top, beautiful pool coping, shower enclosure, pavers, building cladding, and spectacular, fireproof roof covering that can last the life of the building.