Bridgmanite
Magnesium-iron silicate perovskite — stable only at extreme pressure and believed to be the most abundant mineral in Earth's lower mantle.
Intro adapted from Wikipedia (CC BY-SA).
Bridgmanite is an IMA-recognized mineral species in the silicate class, with the chemical formula MgSiO₃.
It crystallizes in the orthorhombic crystal system (space group Pnma). It is a member of the Perovskite structural group.
IMA symbol Bdm, IMA status: approved, named in 2014.
The dominant mineral of the silicate lower mantle of the Earth. As an impact-induced shock-metamorphic phase enclosed in (Mg, Fe)SiO3 glass in meteorites.
It is found associated with Akimotoite, ringwoodite, clinopyroxene with dominant diopside and jadeite components, ringwoodite, majorite, periclase, wadsleyite, troilite, iron.
The mineral was named to honor Percy W. Bridgman (1882-1961), 1946 Nobel laureate in Physics for his contributions to high-pressure mineralogy and research in general. Previously MgSiO3-perovskite.