The Verwey transition is a low-temperature phase transition in the mineral magnetite near 125 kelvins associated with changes in its magnetic, electrical, and thermal properties. Upon warming through the Verwey transition temperature (TV), the magnetite crystal lattice changes from a monoclinic structure insulator to the metallic cubic inverse spinel structure that persists at room temperature. The phenomenon is named after Evert Verwey, a Dutch chemist who first recognized, in the 1940s, the connection between the structural transition and the changes in the physical properties of magnetite. This was the first metal-insulator transition to be found.