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What mineral mainly constitutes the earth's mantle?

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Bridgmanite was recently named as the most abundant mineral on the Earth. It is mostly found in the lower mantle. It has the general formula (Mg,Fe)SiO3. Its structure is the same as that of perovskites. read more

Bridgmanite was recently named as the most abundant mineral on the Earth. It is mostly found in the lower mantle. It has the general formula (Mg,Fe)SiO3. Its structure is the same as that of perovskites. Perovskites have the general formula ABO3. A represents a large cation and B represents a small cation. read more

Some mineral associations (wüstite + periclase and native iron + iron carbides) are, possibly, related to the D″ layer at the core/mantle boundary. "Kaminsky, F., 2012: Mineralogy of the lower mantle: A review of ‘super-deep’ mineral inclusions in diamond. Earth-science reviews, v. 110, 1-4, pp. 127-147. read more

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