Silicate perovskite

Silicate perovskite is a mineral that occurs only under very high pressures from about 230,000 atmospheres. It makes up about 80 % of the lower mantle.

Furthermore, it has been found in 2008 that silicate perovskite is permeable even for optical light and heat radiation. Thus, it was found that the temperature at 2900 km depth is more than 4000 ° C 3000 ° C hot. The first natural silicate perovskite was found in a dust particle of a meteorite and it is believed that this dust grain has its origin in a supernova.