7.4" Clear, Double-Terminated Quartz Crystal Cluster - Brazil
This is an incredible cluster of high-quality, double-terminated quartz crystals from Minas Gerais, Brazil. The clarity of this quartz is spectacular and the terminations are in great condition with only some minor chipping to a few of the crystals. All of the facets and faces are natural and haven't undergone any polishing.
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.