Playing the road into key materials in many fields, the supply should not be called 100 times the value

Science Fiction Network August 29th (Qin Yingying) According to CCTV Finance reports, recently, benefiting from the rapid development of photovoltaic and semiconductor industries, a situation of inferential supply in a stone called "quartz".

Picture source: Baidu Encyclopedia

In Donghai County, Jiangsu Province, which is rich in quartz resources, this year's market conditions are good, and quartz prices have doubled. People in the industry said that in the 1980s, the quartz in Donghai County was mainly used to spread rural roads. Later, found that quartz could make refractory materials and used it for industry.

From the original 5 yuan per ton to 50 yuan per ton, the current 500 yuan per ton, this period was added 100 times. The higher the purity of quartz crystals, the wider the use. The single crystal quartz pupa in the production of photovoltaic silicon wafers, the inner layer of the inner layer is at least 99.99%, the purity difference is 0.001%, and the price per ton is 20 to 30,000 yuan.

Quartz is a mineral that is easily turned into liquid -like minerals. It is also quite common of rock -making minerals, which are available in three categories of rocks. Because it crystals in the firestone, it usually lacks a complete crystal surface, mostly filled in the middle of other first crystals.

Quartz is one of the most widely distributed minerals on the earth. There are many types of quartz. The daily ceramic raw materials are used for vertical quartz, quartz sand, quartz rocks, sandstones, silica, protein, and diatom soil. With ordinary sand and crystal is a substance of "the same mother's fetal". When the silicon crystallization is perfect, the crystal is the crystal. After the silicide gum is dehydrated, it is agate. The silicon dioxide has a water -containing colloid and becomes protein stones. When the silicon dioxide grains are less than a few microns, they form chalcedony, vermiculite, and secondary quartz rocks.

Because quartz has the characteristics of corrosion resistance, high temperature resistance, and high insulation, in recent years, silicon materials based on quartz have developed into an indispensable key material for electronic information, semiconductor, photovoltaic energy, aerospace and other fields.

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