Quartzite, also known as limestone, is the stone referred to in the poem "A Thousand Hammers and Ten Thousand Chisels 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 cabinets and countertops. Compared to natural marble, quartzite's advantage lies in its main component being calcium carbonate, which is radiation-free. Therefore, it is considered a green product for everyday home furniture and is more favored by modern people.
Limestone is a raw material for lime. Besides lime, limestone is also quarried into gravel and coarse sand at stone factories. Gravel is used as an ingredient in cement, while coarse sand is in demand for building houses.
Quartzite is primarily used for crushing river pebbles, cobblestones, granite, limestone, marble, large grey stone, and other hard stone materials. It is widely applied in various fields such as expressways, high-speed railways, rural roads, and construction sand. Quartzite is an ideal material in the construction industry.
Limestone gravel primarily forms in shallow-sea environments. Limestone can be categorized into clastic limestone (formed by water transportation and sedimentation); bioclastic limestone, and chemical/biogenic chemical limestone. Structurally, it can be further divided into bamboo-leaf limestone, nodular limestone, and mass limestone, among others. The main chemical component of limestone is CaCO3, which is easily eroded, thus forming karst landscapes with stone forests and溶caves in limestone regions. Limestone is a key raw material for producing quicklime and cement and serves as a flux in iron and steel smelting.
Limestone is widely distributed, has uniform rock properties, is easy to mine and process, and is a versatile building stone material.
