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Desktop/Console/Mobile/Switch/tModLoader-Only Content: This information applies only to the Desktop, Console, Mobile, Switch, and tModLoader versions of Terraria.
Sturdy Fossil
  • Sturdy Fossil item sprite
  • Sturdy Fossil placed
Stack digit 9.pngStack digit 9.pngStack digit 9.png
Placeable✔️ (1 wide × 1 high)
Use time15 (Very fast)
RarityRarity level: 1
Research100 required
Dropped by Dropped by Dropped by
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
Mirage CrateMirage CrateMirage Crate10-1650*1/2 (50%)
Oasis CrateOasis CrateOasis Crate10-1650*1/2 (50%)
Tomb CrawlerTomb CrawlerTomb Crawler1-250%
This article is about the crafting material. For the naturally occurring block, see Desert Fossil.

Sturdy Fossils are crafting materials used to make the Fossil armor, Bone Throwing Knife, Amber Staff, Scarab Bomb and Bone Javelin. Sturdy Fossils are obtained by putting Desert Fossils in the Extractinator, with a 10% chance of acquiring a Sturdy Fossil from each Desert Fossil. Sturdy Fossils can also be obtained from Basilisks once in Hardmode.

Placed Sturdy Fossils sparkle when an ore-detecting item is used. Placed Sturdy Fossils also show up when a Metal Detector is used, even though they do not spawn naturally.

On the Desktop version Desktop version, Sturdy Fossils can also be obtained from Tomb Crawlers, Oasis Crates, and Mirage Crates.


Used in[]

ResultIngredientsCrafting station
Scarab BombScarab BombBy Hand
Amber StaffAmber StaffIron AnvilIron Anvil
Lead AnvilLead Anvil
Bone JavelinBone Javelin (20) (Desktop versionConsole versionMobile version)
Bone JavelinBone Javelin (15) (Switch version)
Bone Throwing KnifeBone Throwing Knife (30) (Desktop versionConsole versionMobile version)
Bone Throwing KnifeBone Throwing Knife (25) (Switch version)
Fossil GreavesFossil Greaves (Desktop versionConsole versionMobile version)
Fossil GreavesFossil Greaves (Switch version)
Fossil HelmetFossil Helmet (Desktop versionConsole versionMobile version)
Fossil HelmetFossil Helmet (Switch version)
Fossil PickaxeFossil Pickaxe
Fossil PlateFossil Plate (Desktop versionConsole versionMobile version)
Fossil PlateFossil Plate (Switch version)
total: 13 row(s)


  • Sturdy Fossils have no sell value, so crafting them into Bone Throwing Knives is the best way to sell them. Selling Bone Throwing Knives yields 3 per Sturdy Fossil used. However, Scarab Bombs sell for more at a profit of 30 but if the player is buying Bombs to craft them, it is better to craft the knives instead.
  • Not counting the javelins or the throwing knives, making all of the fossil equipment requires 87 / 102 Sturdy Fossils.
  • Placed Sturdy Fossils only blend with Desert Fossil blocks.


  • Desktop 1.4.1: Can now be obtained from Tomb Crawlers, Oasis Crates, and Mirage Crates.