Hellstone Bars are bars crafted from Hellstone and Obsidian. They are used to craft some of the most powerful equipment available pre-Hardmode, and remain useful, if not necessary, in dealing with the shift in difficulty upon entering Hardmode. Notably, the Molten Pickaxe is the only pre-Hardmode pickaxe capable of mining the first tier of Hardmode ores, Cobalt and Palladium.
Crafting all items excluding the Hellfire Arrow requires (Desktop, Console and Mobile versions) 207 Hellstone Bars (621 ore and 207 Obsidian) / (Old-gen console and 3DS versions) 175 Hellstone Bars (525 ore and 175 Obsidian).
- Hellstone Bars have a special immunity to lava in the game's code, even though their rarity implies this anyway.
- Desktop 1.2:
- Crafting requirements reduced from 4 Hellstone to 3 Hellstone.
- Now placeable.
- Desktop 1.0.6: Crafting requirements reduced from 6 Hellstone and 2 Obsidian to 4 Hellstone and 1 Obsidian.