Limestone is a rock of sedimentary origin composed principally of calcium carbonate or the double carbonate of calcium and magnesium or some combination of these two. Limestone is a hard, impervious and compact rock with very low water absorption.

Limestone has a high resistance in freezing and thawing conditions. Due to this, limestone can be used in any atmospheric condition without getting affected. Limestone has a very fine grained surface texture. Limestone slabs and tiles are typically used for floorings, wall cladding, vanity tops etc.