The reserves, characteristics and distribution of talc mineral resources in China
Release time:
2023-05-18
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China's talc mines have huge reserves and high quality, and some mining areas have become well-known for their talc, such as the pink talc produced by the talc mine in Haicheng, Liaoning Province. The prospected deposits generally contain talc content of more than 50%~70%, of which the following 8 deposits are particularly high: Shandong Pingdu Zhifang, containing talc up to 95%; Zhaojiagou, Fengcheng County, Liaoning Province, with talc content of 87.84%; Youyou Mountain, Laizhou City, Shandong Province, Haiyang Province, Shandong Province and Xitan in Guangfeng County, Jiangxi Province all contain talc up to 85%; The talc content of Yaolin in Jiangyuan County, Jilin Province was 84.39%; The content of talc in Dr. Li of Qixia in Shandong Province was 80.29%; Laizhou City, Shandong Province contains 75% talc. Except for the Zhaojiagou talc mine in Fengcheng County, Liaoning Province, which is small, the rest are large and medium-sized. Retained reserves account for 43% of the country.
Most of the talc produced in China is low alumina iron (Al2O3<4%; Fe2O3 <2.75%) ore type, whiteness is generally 80~92. After hand selection, it can also significantly improve the quality of the ore. For example, in mining areas such as Guping and Chicken Feet in Longsheng County, Guangxi Zhuang Autonomous Region, ores are mainly primary and secondary products, chemical components are close to theoretical values, and harmful components are extremely low, which is a high-quality cosmetic grade talc raw material.
The associated minerals of talc ore are dominated by carbonate minerals in China, such as calcite, dolomite, magnesite, followed by chlorite, quartz, tremolite, and some have serpentine and mica.
The best mining conditions for talc are mountainside open-pit mining, such as Guping and Chicken Feet talc in Longsheng County, Guangxi, followed by depression open-pit mining, such as the Zhifang deposit in Pingdu County, Shandong Province. In addition, most of them are underground mining, developed by flat lanes, inclined wells, shafts, etc., or a combination of the two. Natural caving is commonly used in mining.
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