In the development of the ceramic industry, dolomite, as a natural mineral raw material with both functionality and economy, has always played an indispensable role. From the traditional crafts of ancient Ding Kiln and Jingdezhen to the large-scale production of modern ceramics, its unique physical and chemical properties continue to support the quality improvement and process optimization of ceramic products.
    Dolomite has a chemical composition of CaMg(CO₃)₂, with a theoretical content of 30.4% CaO, 21.7% MgO, and 47.9% loss on ignition. It is usually white or grayish-white, with a hardness of 3.5-4 and a specific gravity of 2.8-2.9. Its most notable characteristic is that it decomposes to form calcium oxide and magnesium oxide while releasing carbon dioxide during high-temperature calcination, a property that endows it with multiple key functions in ceramic production.
    In the blank, dolomite can effectively reduce the firing temperature, saving energy costs and minimizing the adverse effects of high temperatures on the blank. Adding 0.5%-8% dolomite can promote the dissolution of quartz and the formation of mullite. By optimizing the ratio of quartz to feldspar, the transparency of the blank and the texture of the products are significantly improved. In the glaze, it can introduce both CaO and MgO. A small amount of addition plays a fluxing role to keep the glaze transparent; excessive addition can produce matte glaze. Compared with calcite, it can avoid glaze smoking and crystallization problems and expand the firing range. In addition, dolomite is abundant in resources, widely distributed and low in price. Coupled with its good fluxing property and plasticity, it can enhance the bonding force of the blank and reduce cracking in ceramic forming, making it an ideal raw material for large-scale production in the ceramic industry. From the traditional application in ancient northern kilns to the technological innovation in modern ceramic industry, the application history of dolomite has witnessed the inheritance and development of ceramic craftsmanship.
     Today, as the ceramic industry's requirements for product quality and diversity continue to improve, the core value of dolomite has become increasingly prominent, continuously empowering the green and low-carbon development and product upgrading of the ceramic industry.

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