#silicate_perovskite

Silicate perovskite

One of the main minerals in the Earth's lower mantle

Silicate perovskite is either (Mg,Fe)SiO3 or CaSiO3 when arranged in a perovskite structure. Silicate perovskites are not stable at Earth's surface, and mainly exist in the lower part of Earth's mantle, between about 670 and 2,700 km depth. They are thought to form the main mineral phases of the lower mantle, together with ferropericlase.

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