Glossary - alphabet order - "Q"

Quartz crystal

Quartz crystals are hexagonal mono crystals such as SiO2 crystal. This includes both natural quartz crystal and synthetic quartz crystal. Natural quartz crystals are typically used for ornamental products. They were also used in industrial-use crystal devices until the mid-1960s. Since then, synthetic quartz crystals have been preferred for industrial uses since they have superior quality, relatively few impurities or lattice defects, and can be supplied steadily.

Natural quartz crystal Synthetic quartz crystal

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