Nether Star

The Nether Star is a drop from the Wither, and it is essential to craft the Beacon.

Use
By itself, a Nether Star has no use. However, it is a required ingredient to craft Beacons. As it is acquired from Withers, which require non-renewable Soul Sand to spawn, this item is also non-renewable.

Trivia

 * The Nether Star is the second boss drop to be added to Minecraft, the first being the Dragon Egg, which is dropped by the Ender Dragon when it is defeated. However, of the two drops, only the Nether Star has a use beyond that of a decoration.
 * Although The Nether and the Wither resemble darkness, and utilize colors such as red and black, the Nether Star is brighter and has colors like blue and yellow.

Netherstern Étoile du Nether 下界之星