Feroxyhyte and lepidocrocite are both polymorphsof the iron oxyhydroxide FeO (OH) which are stable at the pressure and temperature conditions of the Earth's surface.
Feroxyhyte ແລະ lepidocrocite ແມ່ນທັງສອງໂພລິເມີຂອງທາດເຫຼັກ oxygenhydroxide FeO (OH) ທີ່ມີຄວາມ ຫມັ້ນ ຄົງໃນສະພາບຄວາມກົດດັນແລະອຸນຫະພູມຂອງພື້ນຜິວໂລກ.