A Review of the Impurity Element Chemistry and Textures of Natural Quartz and Its Application to the Prospect of High Purity Quartz Deposit
At present,China's high-grade high-purity quartz(above 4N8)completely depends on imports.High-purity quartz is a strategic mineral to ensure the safety of chip,optical fiber,photovoltaic and high-end devices in China.In this paper,related references on the distribution characteristics of impurity elements in quartz are re-viewed and summarized.The medium and high-grade high-purity quartz is mainly isomorphism,mainly includ-ing B,Li,Al,Ge,Ti,Fe,Mn,K and P elements.The prospecting directions of high purity quartz in China are as follows:hydrothermal vein quartz,metamorphic recrystallized quartz,greisen and quartz vein of tungsten-tin de-posit,granite pegmatite quartz and highly differentiated evolution granite quartz.The high-grade high-purity quartz above 4N may be from non-metallogenic granite pegmatite.The geological background,quartz composi-tion and source,controlling factors and other metallogenic theories related to the formation of high-purity quartz deposits,i.e.modelling the mineralisation of high purity quartz,are the basis for the breakthrough in prospect-ing and exploration of high-purity quartz deposits in China.All these not only indicate the prospecting of high-purity quartz,but also trace the magmatic-hydrothermal evolution for tungsten,tin,niobium,tantalum,lithium and other metal deposits.The geological exploration for high-purity quartz is in its infancy in China.This paper is a preliminary summary of the studies on exploration of high-purity quartz in the past years.
quartzimpurity elementprospect of high purity quartz deposit
万方数据
维普
