2.4" Quartz Crystal Cluster with Epidote - China
This is a beautiful, 2.4" wide quartz crystal cluster that features aggregates of green epidote scattered amongst the quartz. It comes from the Hongxizhen unnamed mining area in the Sichuan Province of China.
Silicon Dioxide, also known as SiO2 or Quartz, is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich, hot watery solutions called hydrothermal environments, at temperatures between 100°C and 450°C, and usually under very high pressure. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountains forming, and can be hundreds of millions of years old.