Serpentinization

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Serpentinization

An example of serpentinization in olivine (a mineral rich in iron and magnesium), that is one geologic source of hydrogen, is:

Fe2SiO4 + 2 H2O –> 2 Fe3O4 + 3 SiO2 + 2 H2

Fayalite + Water –> Magnetite + Silica + Hydrogen