Ghast Tear

Ghast tears are dropped by Ghasts when they are killed. It can be difficult to acquire ghast tears due to the difficulty of killing ghasts and due to the fact that ghasts often hover over lava.

Use
In Beta 1.9 Pre-Release 3, instant healing potion can be brewed by adding a ghast tear to awkward potion.

Trivia

 * It is likely that Ghasts drop these due to the "crying noises" they make and that they appear to be sobbing.