Granite is an igneous stone and it is very strong and durable. It is primarily made of Quartz (35%) Feldspar (45%) mixed with particals of Mica and Potassium. The colors depends upon the predominating constituent of Feldspar. It is popularly used as architectura... 

Marble is a Metamorphic stones and mainly consist of Calcium and Dolomite. It ranges in many color and is usually heavily veined and shows lots of grains. The term Marble is also commonly used by those unfamiliar with different stones to refer to any polished na... 

 Sand stones are sedimentary rock composed of rounded grains of Quartz bound together by Silica, Lime, Iron Oxide and/ or Calcium Carbonate. These stones are durable and weather, acid and thermal resistant and have crushing strength. They come in many color... 

Slate is a compact fine Matamorphic stone that is formed from clay, sadimantry rock shell and some time squards. This possess slaty cleavageand hence can be split into slabes and thin plates. It is compose primarily of Silica and Alumina. Slates find application...