Tags: Chemical Substance, Mineral.
Xifengite (Fe5Si3) is a rare metallic iron silicide mineral. The crystal system of xifengite is hexagonal. It has a specific gravity of 6.45 and a Mohs hardness of 5.5. It occurs as steel gray inclusions within other meteorite derived nickel iron mineral phases.It was first described in 1984 and named for the eastern passageway Xifengkou of the Great Wall of China. The type locality is the Yanshan meteorite of the Hebei Province China.