Quartzite, also known as limestone, is the stone referred to in the poem "A Thousand Hammers and Ten Thousand Chisels Bring It Out from the Deep Mountains." After being quarried and cut into slabs by stonemasons, quartzite is widely used for dining table tops in living rooms, as well as for kitchen cabinets and countertops. Compared to natural marble, the advantage of quartzite lies in its primary component being calcium carbonate, which is non-radioactive. Therefore, it is considered a green product suitable for everyday home furniture, and is more favored by modern people.
Limestone is a raw material for lime production. Besides lime, limestone is also quarried into gravel and large sand at stone factories. Gravel is used as an ingredient in cement, while large sand is in demand for construction purposes.
Quartzite is primarily used for crushing a variety of hard stone materials, such as cobblestone, pebble stone, granite, limestone, marble, and large grey stone. It is extensively employed in fields like expressways, high-speed railways, rural roads, and construction sand. Quartzite is an ideal material in the construction industry.
Limestone gravel primarily forms in shallow marine environments. Limestone can be categorized into clastic limestone (formed by water transport and sedimentation), bioclastic limestone, and chemical/biogenic chemical limestone based on its formation. Structurally, it can be further divided into bamboo leaf limestone, massive limestone, and nodular limestone, among others. The main chemical component of limestone is CaCO3, which is easily eroded, leading to the formation of karst landscapes with stone forests and caves. Limestone is a key raw material for producing lime and cement and serves as a flux in iron and steelmaking.
Limestone is widely distributed, uniform in rock type, easy to mine and process, and is a widely used building material.
