(Also called Neel temperature.) The temperature beyond which rocks and minerals become paramagnetic, which for most geophysical purposes means they are nonmagnetic.

The temperature at which a magnet loses all of its magnetic properties.

The temperature above which ferromagnetic materials ceases to be magnetic.

A characteristic property of a ferromagnetic material, often used as a reference point for assessing magnet capabilities.

Temperature at which the crystal structure undergoes a phase change from non-symmetrical lattice (such as tetragonal) to symmetrical lattice (such as cubic). Drastic dielectric and piezoelectric coefficient changes accompany this phase change.