The Department of Natural Resources of Jiangxi Province announced on the 5th that the Jiangxi Provincial Geological Prospecting Fund project "Shizhushan, Yushui District, Xinyu City, Jiangxi Province-Zhangmuqiao Wollastonite Mine General Survey of Shanggao County" passed the resource review and record, and The scale has exceeded the SeeleysBay wollastonite deposit in Canada, and has become the world's largest wollastonite mine.
A total of 333,334 types of wollastonite resources were found in the mine. The amount of ore was 110.33 million tons and the amount of minerals was 69.55 million tons. Tons, mineral amount of 34.78 million tons. According to industry insiders, the mine is not only large-scale, but also has good ore quality and large aspect ratio. The average wollastonite content of the ore exceeds 63%.
Wollastonite is a silicate mineral with a chain structure. Its chemical formula is CaSiO3. It is a white radial and fibrous aggregate. It has the characteristics of insulation, heat resistance, stable chemical properties, alkali resistance, and corrosion resistance. Its hardness is 4.5 to 5.0 and its melting point is 1544. ℃, low thermal expansion coefficient, good insulation, low electrical conductivity and low oil absorption. Wollastonite is mainly divided into two categories: high aspect ratio wollastonite and ground wollastonite. Among them, the ultrafine wollastonite acicular powder, which belongs to the former, has been selected as the first batch of national key new material application demonstration guide directories.
Xinyu City has large reserves of wollastonite, good quality, professional mining, and formed a local economic pillar industry, which is known as "the hometown of wollastonite". 70% of wollastonite production enterprises are concentrated in Yushui District of Xinyu City. Because the area is rich in silicalite ore bodies, a large amount of high-quality wollastonite can be developed. In 2016, China Non-metallic Mineral Industry Association awarded the title of "China Wollastonite Industry Base" in Yushui District, Xinyu City, Jiangxi Province.