The magnetic properties and mineralogical composition of the Moore County eucrite indicate that, while situated within about 10 km. of the surface of the silicate mantle of a primary meteorite body, this meteorite cooled through the Curie temperature of its magnetic constituents (about 560 degrees C.) while in a magnetic field. If this field associated with the primary body was generated within a fluid metallic core, then at this time temperatures within the core must have been greater than about 1700 degrees C. Furthermore the inclination of the direction of magnetization with the horizontal plane of crystal layering observed in the meteorite suggests that the Moore County eucrite formed close to either the 10 degrees N. or 10 degrees S. magnetic latitude of the primary body.