Magnetite

Description

Magnetite is a dense, black, and chemically stable crystalline iron oxide characterized by the chemical formula Fe3O4 (specifically Fe2+Fe3+2O4). As a primary iron ore, it is uniquely distinguished by its ferrimagnetic properties, representing the most magnetic naturally occurring mineral found on Earth. Its ability to retain permanent magnetism has historically identified it as lodestone. Within the fields of ceramics and mineralogy, magnetite serves as a critical source of iron. Due to its ferrimagnetic behavior and dark coloration, it is utilized as a raw material for iron supplementation in clay bodies and as a colorant or fluxing agent in glaze formulations, where it influences both the aesthetic outcome and the thermal processing characteristics of the ceramic matrix.