Global Resource Status and China's Development Suggestions of High Purity Quartz

Due to its excellent physical and chemical properties such as high temperature resistance, corrosion resistance, low thermal expansion, high insulation and light transmittance, high purity quartz is widely used in the high and new technology industries such as photovoltaic, electronic information, optical communication and electric light source, and plays an important role in the strategic emerging industries. Due to the particularity of raw materials and technical confidentiality, the production and export of high purity quartz are highly concentrated in a few countries and enterprises in the world. China's high-purity quartz external dependence is high; the import volume is far more than exports. In order to ensure the development of strategic emerging industries and ensure the safety of high purity quartz resources, it is suggested that high purity quartz be included in the list of critical minerals, the existing geological data be sorted out in a targeted way, the comparative study with granitic pegmatite deposits be strengthened, and the evaluation system of high pure quartz classification standards be established as soon as possible.