Natural crystal and artificial crystal

Crystal is a type of quartz mineral that forms a crystalline structure, with its main chemical component being silicon dioxide, with a chemical formula of SiO2.
 
There are abundant natural crystals in nature, known as natural crystals, but they cannot be mass-produced for industrial use due to impurities.
 
Artificial crystals refer to crystals that are artificially manufactured under certain process conditions in a high-pressure vessel. Currently, all the crystals used in the quartz crystal industry are artificial crystals. Artificial crystals have high purity and are more suitable for industrial mass production.