Bathstone

Bath-stone, a building stone obtained from quarries in the lower oolite near Bath and Box in Somersetshire, and also in Wiltshire. It contains about 94-1/2 per cent. of carbonate of lime, and 2-1/2 per cent. of carbonate of magnesium, cuts very easily in the quarry, and hardens in the air, but is by no means durable when exposed to the weather.