Glowstone Dust

Glowstone Dust is obtained by mining glowstone blocks (only found in the Nether or through Trading) and it may be dropped by a Witch.

Uses
Glowstone dust has four main uses:
 * As a crafting ingredient to rebuild a Glowstone
 * As a brewing ingredient to increase the potency of a potion's effect at the cost of its effect duration
 * As a brewing ingredient to create Thick Potions
 * and, as of 1.4.6, a crafting ingredient to add the sparkle effect to firework star

Trivia

 * In the code, Glowstone Dust is referenced as "lightStoneDust" (formerly "yellowdust").
 * The icon for Glowstone Dust is a recolored version of the Redstone Dust icon.
 * Mining Glowstone and then recrafting it to get blocks over and over again is not recommended, because usually Glowstone drops 3 Glowstone Dust, and it takes 4 glowstone dust to craft Glowstone
 * In the Xbox 360 Edition, Blazes drop 0-3 Glowstone Dust because of the limited amount on the world

Gallery
Glowstonestaub Glowstone (poudre) Izzókőpor 발광석 가루 Lichtsteen (stof) Glowstone (pył) Светопыль 萤石粉