Purification Powder

Purification powder is used to turn Ebonstone into Stone and clear corruption. It is sprinkled forward in the direction of the mouse cursor, reverting any hit Ebonstone to normal Stone and any corrupted grass to normal grass. It is the only way you can get through Chasms besides Dynamite, the Nightmare Pickaxe, and the Molten Pickaxe.

One application of Purification Powder will cleanse an area of around 20-30 Ebonstone. Most Shadow Orbs can be reached with two or three applications. Bringing around 10 for a first expedition to the corruption is plenty.

Can be bought from NPC Dryad for 75 copper coins.

Note that you cannot craft Purification Powder.

With Purification powder you can completely eradicate The Corruption.

For the item of opposite effect: see Vile Powder