extrememineral

extrememineral is a term used to describe minerals that form under extreme conditions not typically found in Earth's crust. These conditions can include very high pressures, high temperatures, highly acidic or alkaline environments, or the presence of unusual chemical compositions. Minerals found in deep Earth environments, such as the mantle or core, or those formed during meteorite impacts, are often considered extrememinerals. Examples include bridgmanite, a high-pressure silicate mineral found in the Earth's lower mantle, and stishovite, a high-pressure polymorph of silica. The study of extrememinerals provides valuable insights into geological processes occurring deep within the planet and the conditions present in extraterrestrial environments. These minerals often have distinct crystal structures and physical properties that differ significantly from minerals found at the surface. Their existence challenges conventional understanding of mineral formation and stability fields. Researchers analyze extrememinerals through techniques like diamond anvil cells and shock wave experiments to replicate the extreme conditions under which they form. This field of study contributes to our understanding of planetary formation and the limits of mineral stability.