Tyrium
Like steel, tyrium is predominantly an iron alloy, though what it is alloyed with is a secret that has eluded metallurgists. Should any have discovered the secrets of its manufacture, they have kept the secret well. Fortunately, when found, whatever the origins, tyrium is only slightly harder to work with than the best steel. Aside from the allure of its mysterious nature tyrium is sought out for its deep purple coloration, incredible ductility and low malleability. Items forged from tyrium are denser than steel and command exorbitant prices (hundreds, if not thousands, of platinum for a single piece is not unreasonable).
Required to be provided for alterations.
For properties on this metal for crafting go here. Tyrium is the premier metal for armor, weapons, and most tools.