Quartz has great economic importance.  It is used in various industrial application including in the manufacture of glass and ceramics and for foundry moulds in metal casting. Silica glass (also called fused quartz) is used in optics totransmit ultraviolet light. Tubing and various vessels of fused quartz have important laboratory applications, and quartz fibres are employed in extremely sensitive weighing devices.

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Quartz is the second most abundant mineral in Earth’s crust after feldspar. It occurs in nearly all acid igneous, metamorphic, and sedimentary rocks. Quartz is found in several countries. However, deposits of High quality are few and are limited India is endowed with rich deposits of highquality Quartz.

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