Dust

Dust is a block added by the Ex Nihilo mod. It is affected by gravity. It is not naturally generated in the world, but can be created by using a Hammer to destroy a block of Sand. Dust can be sifted in a Sieve for pulverised ores, Redstone, Bone Meal, Gunpowder, Glowstone Dust, Blaze Powder, Sulfur, and Certus Quartz Dust, or placed in a barrel full of Water to produce a block of Clay.