Quartz is composed of which two elements?
Answer
Silicon and oxygen
Quartz is silicon dioxide, SiO2. Each silicon atom is bonded to oxygen in a rigid three-dimensional framework, which is what makes it hard enough to scratch glass. It is one of the most abundant minerals in the Earth's crust, and the main ingredient of granite, sandstone and most beach sand.
| Category | Geology |
|---|---|
| Difficulty | Medium |
| Other options in the game | Iron and sulfur, Copper and sulfur, Sodium and chlorine |
| Source | USGS Spectroscopy Lab, Quartz Formula |
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