What is limestone? Limestone is greatly used in architecture as it is easily obtained, cut and carved. Limestone rocks contain flint, clay, sand and calcite in varying amounts. It is also preferred by most of the people in architecture and decoration, as it is long lasting and does well in every climatic condition. Calcareous sedimentary rocks are known as limestone and they are composed of the mineral calcite. When calcite’s calcination is done, it gives lime as a product. In nature, limestone is available in various purity levels, depending upon the other minerals present with it. For example, if some limestone is present with more than 10% of dolomite, it is called as dolomite limestone and same goes for magnesium limestone too. When limestone is recrystallised and polished, it becomes a decorative and building stone called marble. Limestone has been given different names depending upon its texture, mode of occurrence and foraminifera remains, etc. Limestone is a soft and porous stone which is usually composed of tiny fossils and bits of shells, which are easily visible. It is an oft-mined rock, commonly used in a number of applications. As such, much against the popular belief, the use of limestone is not restricted to only architecture. Find out various uses of limestone in the lines below. What is color of limestone? Limestone always white color Quick Details Place of Origin: Egypt Brand Name: CairoMinerals Model Number: Limestone-2016 Available sizes: Limestone 1 mm - 3 mm Limestone 2 mm - 3 mm Limestone 1.50 mm - 3 mm Limestone 0.075 mm -2 mm