Cristobalite is a high-temperature polymorph of silica (SiO2), which means it is one of the various forms that silicon dioxide can take. It is stable at temperatures above about 1470 °C (2678 °F) and is typically found in volcanic rocks and certain types of sedimentary rocks. Cristobalite has a distinctive crystal structure and is known for its use in ceramics and in industrial applications, including as an additive in some materials.
