Nickel is named from the German Nickel, satan or old Nick's, and from kupfernickel, Old Nick's copper, and was discovered in 1751. Nickel is a silvery white metal and takes on a high polish. It is hard, malleable, ductile, somewhat ferro magnetic and a fair conductor of heat and electricity. Nickel is obtained commercially from pentlandite and pyrrhotite of the Sudbury region of Ontario, a district that produces about 50% of the nickel for the world. Other deposits are found in New Caledonia, Australia, Cuba and Indonesia. It is extensively used for making stainless steel and other corrosion resistant alloys. Nickel is also used in coinage and in making nickel steel for armor plate and burglar proof vaults. It is also used as a plating agent, in ceramics and in storage batteries.