Crystal is Crystalline Minerals

- Aug 19, 2019-

Crystal (rock crystal), rare mineral, a kind of precious stones, quartz crystals, on mineralogy belongs to quartz, the main chemical composition is SiO2, chemical formula for SiO2, pure form a colorless, transparent crystal, when containing trace elements Al, Fe and purple, yellow, brown, etc., formed by the irradiation of trace element of different types of color heart, produce different colors, such as purple, yellow, brown, pink, etc.

Inclusions containing associated inclusions are called inclusions, such as hair crystals, green ghosts, etc. The inner inclusions are rutile, tourmaline, actinite, mica, chlorite, etc.