中国蓝晶石族矿产资源禀赋特征、成因类型划分及成矿规律OA

Kyanite group minerals(collectively referred to as the"Three Stones")are accelerating their transition from traditional refractory materials to strategic emerging industries,such as new energy and aerospace.Based on the compilation of the Geology of Mineral Resources of China:Kyanite Group,this paper integrates the latest exploration data and research achievements up to the end of 2025,systematically discussing the resource endowment,metallogenic regularities,and prospecting directions of the"Three Stones"in China.The study indicates that the identified resource reserves of these minerals in China have reached 60.81 million tons,presenting a resource structure characterized by"abundant andalusite,less kyanite,and moderate sillimanite."This paper breaks through the limitations of traditional metallogenic models,emphatically defining the genetic mechanism of hydrothermal alteration type(secondary quartzite type)deposits,and compares the spatio-temporal evolutionary differences between regional and contact metamorphic types.Statistically,the mineralization exhibits a distinct"bimodal"response:highly concentrated in the Precambrian regional metamorphic period and the Phanerozoic thermal contact metamorphic period.Combined with recent large-scale andalusite prospecting breakthroughs in Northwest China(e.g.,Zhangxian and Subei in Gansu Province),this paper further clarifies the prospecting directions and target selection principles for such strategic non-metallic minerals.This study not only deepens the theoretical understanding of the"Three Stones"metallogenic system but also provides a scientific basis for the resource security of China's strategic emerging industries.