Nether Star

The Nether Star is an item drop from the Wither that is used only in crafting beacons. It has the same animated glow that enchanted items and potions use. The dropped Nether Star can not be destroyed by explosions. However, it can still be destroyed by fire, lava, and cacti.

Obtaining
The nether star can only be obtained by defeating the Wither. One nether star will be dropped each time.

Usage
The nether star's only use is to craft the beacon, which supplies the player with indefinitely lasting potion effects while in range (10-50 blocks depending on the layers of the pyramid), when placed on a mineral block (either iron, gold, diamond or emerald) pyramid and 'fuelled' by the blocks' respective items.

Trivia

 * The Nether Star is extremely rare and is considered one of the rarest items in the game due to the length of time it takes to acquire the skulls needed to create the Wither that drops the Nether Star. The boss fight itself is not that difficult, due to the many different methods that make the fight much easier.
 * The Nether Star uses the shimmering texture glint without being enchanted, similar to golden apples, written books and potions.

Gallery
Netherstern Estrella del abismo Étoile du Nether Alvilági csillag Netherster Gwiazda Netheru Звезда Нижнего мира 下界之星