Glowing Obsidian

Glowing Obsidian is a block which only generates when the Nether Reactor is activated.

Obtaining
Upon activation, the blocks that make up the reactor turn into Glowing Obsidian. Glowing Obsidian cannot be retrieved from the nether reactor, instead regular obsidian is dropped. It takes the same amount of time to mine as Obsidian, and the proper tool to mine glowing obsidian is a diamond pickaxe.

Usage
Glowing Obsidian is a solid block that emits a light level of 12. Glowing Obsidian will emit red smoke particles within close proximity to it so long as it exists, and it will turn into obsidian after a short amount of time. It has the same blast resistance as normal obsidian.

Trivia

 * If the Nether Reactor Core is mined out while the Nether Reactor is active, the glowing obsidian will not turn into Obsidian after the reactor deactivates. This also causes the reactor to stop spawning items.
 * If you mine out the gold blocks before they are changed to glowing obsidian, you keep the gold blocks and the Nether Reactor keeps spawning items.

Gallery
Leuchtendes Obsidian Obsidienne lumineuse Пылающий обсидиан 发光的黑曜石