What acid dissolves quartz?

Quartz is primarily composed of silicon dioxide (SiO2), which is highly resistant to chemical weathering. However, hydrofluoric acid (HF) can dissolve quartz by reacting with the silicon dioxide to form soluble silicofluorides. This reaction makes hydrofluoric acid a useful reagent in various laboratory applications for removing quartz from samples. Caution is necessary when handling HF due to its highly corrosive nature and potential health hazards.