A significant discovery of a magnesium-rich dolomite deposit has been made in Pingliang city, Gansu province, marking a pivotal moment in China’s mineral exploration efforts. The Gansu Provincial Department of Natural Resources announced on Wednesday that the deposit, located in the Zhuanmatai area of Kongtong district, boasts an estimated resource of 700 million metric tons. This find is characterized by five layered ore bodies, each with an average magnesium oxide (MgO) content of 20.67%, indicating high-quality reserves suitable for magnesium smelting. The deposit’s attributes—large scale, shallow depth, gentle dip angle, and stable thickness—make it particularly conducive to open-pit mining. Beyond the 700 million tons of magnesium-smelting dolomite, an additional 300 million tons of construction-grade dolomite have been identified. Dolomite’s versatility extends to various industries, including refractories, metallurgy, glassmaking, and ceramics, promising substantial opportunities for integrated resource utilization and industrial advancement.