This Specimen has been sold.
2.5" Clear Quartz Crystal Cluster - Brazil
This is a 2.5" long, natural clear quartz crystal cluster from Brazil. The crystals on this specimen have nice terminations, as well.
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.