Orichalcum Ore

Orichalcum Ore is a magenta-colored Hardmode Ore which can replace Mythril in a given world. Like all Hardmode Ores, Orichalcum is generated upon destruction of a Demon Altar with a Pwnhammer.

Trivia

 * Orichalcum is named for the fictional metal described by Plato in his work  "Critias", where it is mined only in the legendary lost city of Atlantis.