Luminite

Luminite is a Hardmode ore that drops exclusively from the Moon Lord, usually in stacks of 70-90 (90-110 in Expert Mode). It can be used to craft Luminite Bars, which can then be used to make a majority of end-game items, such as the Solar, Nebula, Vortex, and Stardust tools and armor.

Crafting all items requires 1088 Luminite. This means defeating the Moon Lord 13 - 16 times in normal mode, or 10 - 13 times in Expert Mode.

Trivia

 * It is the only ore that doesn't need any kind of Furnace or Forge in order to be smelted into bars.
 * Luminite can be mined with any pickaxe, including Copper pickaxes.
 * Even though Luminite is an "ore," it won't be affected by the Spelunker Potion or the Magic Lantern, Metal Detector, or the Suspicious Looking Tentacle.
 * Luminite is the only ore that doesn't have its own designated armor set, instead it is crafted into the Solar armor, the Stardust armor, the Vortex armor, and the Nebula armor.
 * Wings made from luminite are the only craftable wings not requiring Souls of Flight.

History
Luminite 루미나이트 Luminite