Nether Reactor Core

The Nether Reactor Core is a block. It is the main component in constructing the Nether Reactor. It is the only way to obtain Glowstone, Nether Quartz and Melon in-game as of 0.6.0.

Crafting
Crafting the Nether Reactor Core requires three diamonds and six iron ingots.

Stages
Note that in any stage when the nether reactor core is mined, it will always drop as stage 1
 * 1) This stage would be an unused nether reactor core; it uses the default texture.
 * 2) This stage would be when the nether reactor is active. The nether reactor core would now appear with a reddish color, while the items spawn in.
 * 3) This is when a nether reactor has stopped. The core will have a dark blueish texture that represents it being "used up."

Trivia

 * If one attempts using the Nether Reactor Core when in stage 3, it still builds the spire, but the rest of the process is canceled.
 * The Nether Reactor Core is also available in the Raspberry Pi edition of Minecraft.