Malatium, also known as the Eleventh Metal, is a metal that allows a mistborn burning it to see a vision of possible other lives someone else could have led, and different paths they could have taken. It is similar to Gold, in that it is an external version of the same power. It is an alloy of Atium and gold. Malatium let Vin see visions of the Lord Ruler's possible other lives, and defeat him by taking away his feruchemical reserves of age. It's more powerful than the other ten.