How is peridot made?

Answer 1

Peridot is a gem-quality variety of the mineral olivine, which forms in the Earth's mantle at high temperatures and pressures. It is typically created through volcanic activity, where magma containing olivine crystals cools and solidifies. Peridot can also be found in meteorites, indicating that it can form in extraterrestrial environments. The gem is often extracted from volcanic rock or alluvial deposits where it has been weathered and eroded.