Brimstone Block

Brimstone is a block type found in The Corrosion. Before Hardmode, it is the most prominent lining in the Chasms. It requires at least the Fleshdecay Pickaxe or explosives to mine. Liverwort can grow on Brimstone.

Brimstone is the Corrosion version of Stone (similar to Crimstone in The Crimson, Ebonstone in The Corruption, and Pearlstone in The Hallow). Brimstone can be converted to normal stone with Purification Powder or Lime Solution used by the Clentaminator.

In Hardmode, the spread of Corrosion converts ordinary Stone blocks into Brimstone. Brimstone itself also spreads Corrosion to susceptible blocks nearby.