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  • Hellstone item spriteold Hellstone item sprite
  • Hellstone placed
Stack digit 9.pngStack digit 9.pngStack digit 9.png
  • Pickaxe icon.png 65%
Placeable✔️ (1 wide × 1 high)
Use time15 (Very fast)
RarityRarity level: 2
Research100 required
Inflicts Debuff
Debuff tooltipLosing life and slowed movement
For strategies on mining Hellstone, see Guide:Mining Techniques § Mining Hellstone.
See also: Hellstone Crate

The underworld is made of a material called hellstone. It's perfect for making weapons and armor.

The Guide

Hellstone is an ore that can be found in The Underworld. Mining it requires at least a Nightmare/Deathbringer Pickaxe, and it cannot be mined with explosives in pre-Hardmode. Hellstone in the Underworld emits a faint glow and releases a half-tile of lava when mined. Hellstone tools are among the most powerful that can be acquired in pre-Hardmode, rivaled only by three tools that can be caught from fishing, the Sawtooth Shark, Rockfish, and Reaver Shark.

Hellstone inflicts the Burning debuff on players who touch it. Items that protect the player from the debuff (including the Obsidian Skull and its derivatives) will allow players to touch it without incurring fire damage. NPCs and enemies do not receive damage from Hellstone.


Used in[]

ResultIngredientsCrafting station
Hellstone BrickHellstone BrickFurnaceFurnace
Hellstone BarHellstone BarHellforgeHellforge
Flask of FireFlask of Fire (Desktop versionConsole versionMobile versionNintendo Switch versiontModLoader version)Imbuing StationImbuing Station
Flask of FireFlask of Fire (Old-gen console versionNintendo 3DS version)
Obsidian ToiletObsidian ToiletSawmillSawmill
Obsidian ChestObsidian ChestWork BenchWork Bench
Obsidian SinkObsidian Sink (Desktop versionConsole versionMobile versionNintendo Switch version)
Obsidian SinkObsidian Sink (tModLoader version)
Cinder WallCinder Wall (4) (Desktop versionConsole versionMobile versionNintendo Switch version)
  • HellstoneHellstone
Work BenchWork Bench and Ecto Mist
Ember WallEmber Wall (4) (Desktop versionConsole versionMobile versionNintendo Switch version)
  • HellstoneHellstone
Magma WallMagma Wall (4) (Desktop versionConsole versionMobile versionNintendo Switch version)
  • HellstoneHellstone
Smouldering Stone WallSmouldering Stone Wall (4) (Desktop versionConsole versionMobile versionNintendo Switch version)
  • HellstoneHellstone
total: 12 row(s)


  • Hellstone will not create lava if mined outside of the Underworld.
  • The Spelunker buff will not light up Hellstone, and the Metal Detector (and upgrades) will also not show Hellstone nearby. However, the Dangersense buff will. Nevertheless, it can be found easily due to the sparks it produces and its contrast to the Ash Blocks.
  • In Hardmode, Hellstone can be destroyed with Dynamite and Bombs.


Achievement Ooo! Shiny!.png
Ooo! Shiny! • Mine your first nugget of ore with a pickaxe.
Mine your first ore.


  • Lava can be farmed by repeatedly mining and placing Hellstone in The Underworld.
  • Placing gravity-affected blocks such as Sand Blocks on top of Hellstone before mining will keep the Hellstone from inflicting damage.
  • Use an Obsidian Skin Potion to become immune to the lava that generates when hellstone is mined.


  • Hellstone, Meteorite, Luminite, and Obsidian are the only ores that do not have "ore" in the name.
  • Hellstone is the only ore in the game whose bar requires a material in addition to its ore to smelt.
  • In the real world, silver nitrate is sometimes called "Hellstone".
  • In 1.0, Hellstone was considered an endgame ore.
  • Hellstone has a special immunity to lava in the code, despite its rarity of Rarity level: 2 stopping that anyway.
    • This is because before update 1.1, it had a rarity of Rarity level: 0, so it needed that code to prevent it from burning.


  • Desktop 1.2:
    • Stack limit increased from 250 to 999.
    • No longer causes invincibility frames when touched, instead giving the Burning debuff.