Limestone is a common sedimentary rock consisting mostly of calcium carbonate, CaCO3, used as a building stone and in the manufacture of lime, carbon dioxide, and cement. Essentially a Dolomite stone possessing oil-resistant properties, Limestone shows high resistance in freezing and thawing conditions. It is generally used as limestone tiles, limestone slabs in flooring, wall cladding, vanity tops and to pave the floors of large commercial complexes, hospitals, airports, shopping malls, railway stations, parks etc