"You got the Crimsonine! It's one metal you need to make the sacred sword. Only a sword forged of the three pure metals has the power to defeat Bellum!"
Crimsonine is one of three Pure Metals featured in Phantom Hourglass. It is the first metal, and is located in the Goron Temple on Goron Island. Link is given this metal by Gongoron after he defeats Dongorongo. This metal is required to forge the Phantom Sword.