Crying Obsidian

Crying Obsidian refers to a leaked, abandoned project by Jeb to implement a change-spawn obelisk.

This is a secret block in minecraft that can only be obtained by crafting water and obsidian next to each other. The crafting recipe can not be shown do to the bug when crying obsidian is the output.

Its original purpose was to set a new respawn point, but was made top secret after the introduction of beds. It would have been crafted with an obsidian block and lapis lazuli.

Trivia

 * The Crying Obsidian texture still exists in the Minecraft Pocket Edition terrain.jpg file. (both platforms)
 * It also looks (very closely) like a Soul Sand block overlaid with the ore part of Lapis Lazuli.