Demonite Bar

Used to create unholy weapons, or together with Shadow Scales to make nightmare tools or Shadow Armor.

Demonite Bars are smelted from Demonite Ore, which is dropped by the Eye of Cthulhu, Eater of Worlds, and, as of 1.0.5, can be mined.

It is possible to make a large profit off these bars, however, Demonite Ore yields the same payoff without smelting.