Peridot
Peridot is gem-quality olivine and a silicate mineral with the formula of (Mg, Fe)₂SiO₄. As peridot is a magnesium-rich variety of olivine, the formula approaches Mg₂SiO₄.
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Peridot is gem-quality olivine and a silicate mineral with the formula of (Mg, Fe)₂SiO₄. As peridot is a magnesium-rich variety of olivine, the formula approaches Mg₂SiO₄.