Glowing Obsidian

Glowing obsidian is a Bedrock Edition exclusive block that has no use, other than decorating.

Post-generation
In versions of Pocket Edition Alpha from 0.5.0 to 0.12.0, glowing obsidian was created when a nether reactor structure was active. The nether reactor's functionality has since been removed, leaving add-ons or inventory editors as the only remaining ways to obtain glowing obsidian. It is not in the player's Creative inventory.

From block loot
Glowing obsidian can be picked up with a diamond pickaxe.

Info
Glowing obsidian has no purpose other than decoration and lighting up areas. Also, theres no other use exept addons that add uses for it.

Issues
Glowing obsidian is an unsupported block and as such issues relating to them may not be fixed.

Trivia

 * Glowing obsidian makes an appearance in Minecraft: Story Mode - Season Two when Jesse places the structure block it spawns around the observer, and on the bottom of the obsidian cages Vos was in.
 * Glowing obsidian became unused when Silk Touch was added. Therefore, the block has never been obtainable.
 * Glowing obsidian has no name assigned to it, so its in-game name appears as.
 * Despite this, it can be assigned a custom name using resource pack with a language file.