Elgoresyite

elgoresyite

ringwoodite

xieite

tuite

Images

Formula: (Mg5Si2)O9
Oxide
Specific gravity: 4.315 calculated
Environments

Chondrite meteorite

Elgoresyite is a new mineral, approved in 2020 and to date (June 2022) reported only from the type locality.

Localities

At the type locality, the Suizhou meteorite, Xihe, Zengdu District, Suizhou, Hubei, China, elgoresyite was found as a shock-induced melt vein of the chondrite meteorite and is a high-pressure mineral that may represent an intermediate phase at pressures characteristic for the existence of ringwoodite and bridgmanite. It is suggested that it could have formed in the cores of early solar system planetoids and could be a representative mantle mineral of rocky bodies that had a higher Mg:Fe ratio than Earth or Mars (AM107.778).
Elgoresyite was associated with xieite, tuite, ringwoodite, majorite, magnesiowüstite, lingunite, hiroseite, hemleyite, asimowite and akimotoite (Mindat).

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