👉 Cristobalite is a type of mineral in the group called olivine. It is also known as an olivine or olivine quartz, and it is often used in gemstones such as diamond and sapphire. The crystal structure of cristobalite is similar to that of olivine, with a cubic symmetry and a lattice parameter of 1.56 Å (or 0.0082 mm). It has a glassy texture and is
