Astral Powder

 Object 'powder astral' type treasure, extra flags none.
 Weight 1, value 5000, level 126.
 Object Quality (50 / 50 hps)

 You look at some astral powder in your inventory...
 Twinkling powder floats before your eyes.
 This item seems to be treasure.
 It weighs approximately 1 lbs.
 This item cannot be worn.

This object is located on the Invisible Stalkers in the Astral Plane. Its only use apart from selling for a small amount of gold is in the Vault Treasure Hunt quest.