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Quartz (SiO2)
Quartz, also known as rock crystal, is the crystalline form of SiO2 belonging to the trigonal system.
Quartz is one of the most abundant minerals in the Earth’s crust and the most important silica mineral, occurring in large amounts in igneous, metamorphic and sedimentary rocks. The mineral is widely used as a raw material in Ceramic Industries. Quartz is used in ceramic industry to reduce shrinkage in drying and firing and to impart rigidity to the body.
Quartz is a barren raw material before firing, which can adjust the plasticity of the Ceramic Body. Quartz particles are often in the shape of polygonal sharp edges, which provide a path for the rapid discharge of green body moisture, increase the water permeability of the green body, which is beneficial to the glazing process, and can shorten the drying time of the body, reduce the drying shrinkage of the body, and prevent deformation of the green body.
In porcelain, quartz has a great influence on the mechanical strength of the green body. Appropriate quartz particles can greatly increase the strength of the porcelain body, otherwise the effect is opposite. At the same time, quartz can also improve the transparency and whiteness of the porcelain blank.
In the glaze, silicon dioxide is the main component to produce vitreous. Increasing the quartz content in the glaze can increase the melting temperature and viscosity of the glaze, and reduce the thermal expansion coefficient of the glaze. At the same time, it is the main factor of giving the glaze a high mechanical strength, hardness, abrasion resistance and chemical resistance.
Yes Group Of Minerals have a wide range and many different grades of Quartz
Industries : Tiles, Sanitary Ware, TableWare, Insulator, Refractories, Paint Industries, Paper Industries, Glass Industries, Cement, Plastic, Rubber, Cosmetic
Properties :
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Hard (7 on Mohs scale)
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Chemically inert
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Thermal stability
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Electrical properties
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Iron Fe203 at 0.03%
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It offers a low thermal expansion and hence, allows minimum shrinkage
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One of the best benefits of High-Quality Quartz is low electric conductivity
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When exposed to eutectic temperature, it can form a clear lattice structure
