Hellstone Brick

Hellstone Bricks can only be mined from buildings in The Underworld. Crafting them requires 1 Hellstone and 1 Iron Pickaxe per brick, making them very difficult to obtain. Players without an Obsidian Skull in their accessory slot will take damage from touching the brick. Unlike players, NPCs and enemies will not take any damage from contact with Hellstone Bricks.