Is Xi's mystery shop crystal true?

Yes Xi Er Mystery Store is a jewelry store in Xiaohongshu, which mainly sells bracelets and other products. The crystal sold in this shop is real, but it is not rock crystal, it belongs to artificial crystal. The main chemical composition of crystal is silicon dioxide, with the chemical formula of SiO2. It is a kind of gem and a timely crystal, belonging to the timely family in mineralogy.