Cost Of Project : Rs.4.00 lac. Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. One of the most important physical properties of chalk...

Cost Of Project : Rs.4.00 lac. Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. One of the most important physical properties of chalk is its ability to store water. For industrial purposes, chalk makes a good fertilizer and cement-maker. Its permeability allows easy molding and tunneling, and its softness is useful in writing utensils..