Limestone: A Versatile Sedimentary Rock
Limestone is a sedimentary rock primarily composed of calcium carbonate (CaCO₃), often formed from the accumulation of marine fossils, shells, and coral over millions of years. It is widely used in construction, agriculture, and industry due to its durability and chemical properties.
### Key Uses of Limestone:
– Construction: Crushed limestone is used in concrete, road base, and as a building stone.
– Agriculture: It neutralizes acidic soils and provides essential calcium for crops.
– Industry: Processed into lime (calcium oxide) for steelmaking, water treatment, and glass production.
– Decorative: Polished limestone is popular for countertops, flooring, and sculptures.
### Interesting Facts:
– Famous landmarks like the Great Pyramid of Giza and the Parthenon were built using limestone.
– It forms stunning natural landscapes, such as caves and cliffs, through erosion.
Limestone’s abundance and versatility make it a vital resource worldwide.