Obsidian Skull

The Obsidian Skull is an accessory that grants immunity to fire blocks, i.e. Meteorite and Hellstone, but not lava or fire-based attacks. It also provides a modest defense bonus of 1 while equipped. This stacks with the 1 defense from a Cobalt Shield and 1 defense from a Shackle.

It is not required to have one equipped while mining Meteorite or Hellstone as you only take damage when touching the minerals, however it makes the process much easier. As such, if you stand at a distance you can still mine the ore safely.

Tips

 * Using an obsidian generator and creating many Obsidian Skulls to sell is an easy way to make money.