Quartz glass is a type of glass that is made from pure silica. It is a high-purity glass that is used in scientific experiments and in the electronics industry. Synonyms for quartz glass include fused silica, amorphous silica, high-temperature glass, and pure silica glass. Fused silica refers to the process of melting pure silica to form the glass, while amorphous silica refers to the lack of crystalline structure in the glass. High-temperature glass refers to the ability of quartz glass to withstand high temperatures without melting or degrading. Pure silica glass highlights the material's high purity and lack of impurities. Overall, all these synonyms refer to the same high-quality glass used in various industries.