Sandstone is a sedimentary rock composed mainly of sand sized minerals or rock grains. It generally has a uniform texture and it is somewhat soft. It has a high weather resistance which makes it suitable for pool surrounds, patios and counter tops. Soapstone is a metamorphic rock. It is largely composed of 50% mineral talc and 50% rich magnesium. It is relatively soft and may sometimes feel soapy to the touch. The dry almost slippery feel is caused by the talc. Although it is a soft rock it is also a dense, non-porous rock which makes resistant to stains and chemical infiltrations.