

Quartzite, also known as limestone, is referred to in the poem "A Thousand Hammers and Ten Thousand Chisels Break Through the Deep Mountains." Quartzite, after being quarried and cut into slabs by stonemasons, is widely used for dining table tops in living rooms or countertops in cabinets. Compared to natural marble, the advantage of quartzite lies in its primary component, calcium carbonate, which is non-radioactive. Therefore, it is considered a green product for everyday home furniture and is more favored by modern people.
Limestone is an essential raw material for lime. In addition to lime, limestone is also quarried into gravel and coarse sand by stone factories. Gravel is a component of cement, while coarse sand is in high demand for construction purposes.
Quartzite is primarily used for crushing a variety of hard stone materials, including river pebbles, cobblestones, granite, limestone, marble, and large blue stone. It is extensively employed in multiple fields such as expressways, high-speed railways, rural roads, and construction sand. Quartzite is an ideal material for the construction industry.
Limestone gravel primarily forms in shallow marine environments. Limestone can be classified into detrital limestone (formed by water transport and sedimentation), bioclastic limestone, and chemical/biogeochemical 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, thus leading to the formation of karst landscapes with stone forests and caves. Limestone is a key raw material for the production of lime and cement, and it serves as a flux in iron and steelmaking.
Limestone is widely distributed, uniform in texture, easy to mine and process, and serves as a versatile building material.































