High-purity quartz sand is a high-purity non-metallic mineral raw material produced from natural quartz minerals through a series of physical and chemical purification technologies with a particle size of 0.1-0.45mm. It is widely used in high-end electric light sources, large-scale and very large-scale integrated circuits, Solar cells, optical fibers, lasers, aerospace, military and other fields.

High-purity quartz raw materials, that is, natural quartz ore whose silica content can be purified to 99.9% and above by the existing mature processing technology. The raw material for the preparation of high-purity quartz sand is natural crystal, but its reserves are scarce. With the mining, the resources are gradually exhausted and unevenly distributed. Except for a few regions such as Brazil, Madagascar, and South Africa, other natural crystal reserves are small and small. The production area is mixed, the performance is unstable, and it is difficult to mass produce.

On the other hand, high-purity quartz raw materials have strict requirements for mineralization conditions. Among the types of quartz minerals, vein quartz is of quality, its color is pure white, grease luster, and purity is extremely high. The mineral composition is basically quartz with silica content. It reaches more than 99%, but only accounts for 0.93% of China’s quartz mineral resources. China’s quartz mineral resources can really be used as raw materials for high-purity quartz glass. The mineral reserves are small and the scale is small. The granitic pegmatite in the Spruce Pine area of ​​North Carolina is a high-purity quartz deposit affected by the movement of Alehani green schist in the world. It has the advantages of large ore body, less fluid impurities in the quartz, and stable ore quality. One of the reasons why Unimin's quartz sand production has a monopoly advantage in the global high-purity quartz sand market.

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