This Specimen has been sold.
5.9" Quartz Geode (Half) - Morocco
This is a 5.9" wide geode filled with quartz crystals, collected from Morocco. The interior of this beautiful geode is encrusted in quartz crystals, along with some calcite along one side. You will receive the pictured half of the geode.
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.