20.2" Quartz Crystal Cluster (66 lbs) - Brazil
This is a beautiful and massive cluster of quartz crystals from Brazil. There is a small amount of iron oxidation on the exterior of most of these crystals. The cluster weighs 66.5 lbs and sits up at an angle that allows for aesthetic presentation without the need for a display stand.
Silicon Dioxide, also know 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.