Obsidian Brick Wall

Obsidian brick walls are a placeable item crafted from 2 Obsidian using the Workbench. It is used as a barrier or in the construction of a building. Obsidian walls must be removed with either a Flamerite Pick or The Minertaur and are collected as a wall, but revert any ground tile it is on to dirt. Obsidian brick walls are found in the Crypt, guarding the portal to the Underworld and can also be found in the underworld denoting treasure rooms.