Fused quartz
GLASS CONSISTING OF PURE SILICA
Fused silica; Quartz glass; Silica glass; Fused-quartz; Sio2 glass; Molten silica; Quartz glas; Suprasil; Infrasil; Vitreous silica
Fused quartz, fused silica or quartz glass is a glass consisting of almost pure silica (silicon dioxide, SiO2) in amorphous (non-crystalline) form. This differs from all other commercial glasses in which other ingredients are added which change the glasses' optical and physical properties, such as lowering the melt temperature.