Which mineral is composed of silicon dioxide (SiO_(2)) Calcite Diamond Quartz Olivine

The mineral composed of silicon dioxide (SiO2) is Quartz. Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. It is the second most abundant mineral in the Earth's continental crust, behind feldspar. Quartz is a key ingredient in the manufacture of glass, ceramics, and paint. It is also used in the production of electronic components, such as oscillators and filters.