CrystalsA crystal is a type of solid material that has a regular, repeating pattern of atoms. This regular arrangement of atoms gives crystals unique physical properties, such as a high degree of symmetry and a specific atomic arrangement. Crystals are commonly used in a variety of applications, including jewelry, watches, and electronic devices. In the context of electronic devices, crystals are often used as resonators, oscillators, or filters. They are known for their high precision, low loss, and low temperature coefficient. Crystals are typically made from crystalline materials such as quartz, sapphire, or silicon.