Fossils are special type of crafting materials that were introduced to Path of Exile during the Delve expansion league. There is a wide variety of Fossils that can be found within the Delves– a randomly generated mine that you can explore between each checkpoint.
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The information in this article applies to Path of Exile on PC, Xbox and PS4.
Fossils are mostly found within the short side areas in the darkness, though they sometimes even appear in the area in which your cart can move.
Sometimes, Fossils can even spawn behind Fractured Walls, so you’ll have to destroy the Fractured Walls with Dynamite before you can access the Fossil spawn location.
Fossil farming is a quite common thing to do during new leagues, simply because Fossils can be quite expensive– being a really good money making method but in order to be an efficient farmer you have to know the Fossil locations and spawn rates.
There are currently a total of 30 different Fossils which spawn in certain Fossil locations aka Fossil biomes (within the Delve mine) and there are 7 of these Fossil locations.
Fossil Spawn Locations Spreadsheet
Note – Mines are missing from this Spreadsheet, as well as Lucent and Gilded from Abyssal Depths. Check the Fossil spawn Location tables below for more accurate information.
Fossil Location Mines Biome
| Fossil Location |
Fossil Effect |
| Metallic Fossil | Items Have More Lightning Modifiers; No Physical Modifiers |
| Serrated Fossil | Items Have More Attack Modifiers; Fewer Caster Modifiers |
| Pristine Fossil | Items Have More Life Modifiers; No Armour, Energy Shield or Evasion Modifiers |
| Aetheric Fossil | Items Have More Caster Modifiers; Fewer Attack Modifiers |
Fossil Location Fungal Caverns Biome
| Fossil Location |
Fossil Effect |
| Dense Fossil | Items Have More Armour, Energy Shield or Evasion Modifiers; No Life Modifiers |
| Aberrant Fossil | Items Have More Chaos Modifiers; No Lightning Modifiers |
| Perfect Fossil | Items Have Improved Quality |
| Corroded Fossil | Items Have More Poison or Bleeding Modifiers; No Elemental Modifiers |
| Gilded Fossil ★ |
Items Have Item is Overvalued By Vendors |
Gilded Fossil spawns rarer than the other Fossils on this location, therefore it’s worth more and can only be found behind Fractured Walls.
Fossil Location Petrified Forest Biome
| Fossil Location |
Fossil Effect |
| Bound Fossil | Items Have More Minor or Aura Modifiers |
| Jagged Fossil | Items Have More Physical Modifiers; No Chaos Modifiers |
| Corroded Fossil | Items Have More Poison or Bleeding Modifiers; No Elemental Modifiers |
| Sanctified Fossil ★ |
Item Numeric Modifiers Values are Lucky; High Level Modifiers are More Common |
Sanctified Fossil spawns rarer than the other Fossils on this location, therefore it’s worth more and can only be found behind Fractured Walls.
Fossil Location Abyssal Depths Biome
| Fossil Location |
Fossil Effect |
| Aberrant Fossil | Items Have More Chaos Modifiers; No Lightning Modifiers |
| Bound Fossil | Items Have More Minor or Aura Modifiers |
| Gilded Fossil ★ | Crafted Item is Overvalued By Vendors |
| Lucent Fossil ★ | Items Have More Mana Modifiers; No Speed Modifiers |
Gilded and Lucent Fossil spawns rarer than the other two Fossils present in this Biome, therefore they’re worth more and can only be found behind Fractured Walls.
Fossil Location Frozen Hollow Biome
| Fossil Location |
Fossil Effect |
| Frigid Fossil | Items Have More Cold Modifiers; No Fire Modifiers |
| Serrated Fossil | Items Have More Attack Modifiers; Fewer Caster Modifiers |
| Prismatic Fossil | Items Have More Elemental Modifiers; No Poison or Bleeding Modifiers |
| Sanctified Fossil ★ |
Item Numeric Modifiers Values are Lucky; High Level Modifiers are More Common |
Sanctified Fossil spawns rarer than the other two Fossils present in this Biome, therefore it’s worth more and can only be found behind Fractured Walls.
Fossil Location Magma Fissure Biome
| Fossil Location |
Fossil Effect |
| Scorched Fossil | Items Have More Fire Modifiers; No Cold Modifiers |
| Prismatic Fossil | Items Have More Elemental Modifiers; No Poison or Bleeding Modifiers |
| Pristine Fossil | Items Have More Life Modifiers; No Armour, Energy Shield or Evasion Modifiers |
| Enchanted Fossil | Item Has a Labyrinth Enchantment |
| Encrusted Fossil ★ |
Items Have More Sockets; Can have White Sockets |
| Faceted Fossil ★ |
Items Have More Socketed Gem Level Modifiers |
Encrusted and Faceted Fossils spawn rarer than the other Fossils present in this Biome, therefore they are worth a lot more and can only be found behind Fractured Walls.
Fossil Location Sulfur Vents Biome
| Fossil Location |
Fossil Effect |
| Metallic Fossil | Items Have More Lightning Modifiers; No Physical Modifiers |
| Perfect Fossil | Items Have Improved Quality |
| Aetheric Fossil | Items Have More Caster Modifiers; Fewer Attack Modifiers |
| Encrusted Fossil | Items Have More Sockets; Can have White Sockets |
