Magnetite
Magnetite is a highly magnetic, naturally occurring iron oxide mineral with the chemical formula Fe₃O₄. It is the most magnetic mineral on Earth, containing up to 72% iron by weight, and is one of the primary ores used to produce steel.
Magnetite is a highly magnetic, naturally occurring iron oxide mineral with the chemical formula Fe₃O₄. It is the most magnetic mineral on Earth, containing up to 72% iron by weight, and is one of the primary ores used to produce steel.