Fused quartz is a type of glass made from pure silica, which is heated to extremely high temperatures until it melts and then solidifies. This process creates a material that is highly transparent and has excellent thermal and chemical resistance. Fused quartz is commonly used in applications such as laboratory equipment, optical components, and semiconductor manufacturing. One of the key properties of fused quartz is its low thermal expansion, which means it can withstand rapid temperature changes without cracking. This makes it ideal for use in high-temperature environments, such as in furnaces or light bulbs. Its durability and clarity also make it a popular choice for scientific instruments and optical fibers.