Crying Obsidian

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

History
Its original purpose was to set a new respawn point, but was abandoned after the introduction of beds. It would have been crafted with an Obsidian block and Lapis Lazuli.

On February 9, 2012, Jeb was tweeted with a request for the return of Crying Obsidian (or more colored blocks). He responded "As soon as I've made preparations for more texture space," suggesting the return of Crying Obsidian might be possible.

Trivia

 * The Crying Obsidian texture used to exist in the Pocket Edition terrain.png file on both platforms, but was removed in a more recent update.
 * It also looks (very closely) like an Obsidian block overlaid with the ore pattern of Lapis Lazuli.