Limestone

Limestone is formed as a result of millions of years of sea shells and bones of sea creatures settling as sediment on an ocean floor (hence it is called a sedimentary stone). The calcium in the bones & shells combines with Carbon Dioxide in the water to form Calcium Carbonate, which is the basic mineral structure of all limestone and marble. Less than 3% of the stone is the color, which is simply other natural elements present when the stone formed (ie iron deposits give you a reddy brown).

It is available in elegant shades of yellow, blue, brown and black. Due to its durability and longlife, limestone is generally used as building stone and for making statues. Its use as wall cladding material has also gained immense popularity.