Magnetic Rocks: Examples, Value – Geology In

Magnetic Rocks: Examples, Value – Geology In

Magnetic rocks are naturally occurring minerals or rocks that exhibit magnetic properties, either attracting magnets or generating detectable magnetic fields, as measured by instruments like compasses or magnetometers. These properties stem from ferromagnetic or ferrimagnetic minerals, primarily magnetite (Fe₃O₄), alongside others like maghemite (γ-Fe₂O₃) or, less commonly, native iron (Fe) and iron-nickel alloys (e.g., kamacite or taenite) in m…