Dense Fossil Farming, Crafting Mods, Biomes, Nerf – PoE 3.7

Dense Fossil Dense Fossil is a fossil type. Fossils are a special type of currency introduced in the delve league that can be socketed into resonators to modify the crafting behavior in specific ways. Fossils can also add special Delve modifiers.

Dense Fossil Mods, Affixes – Crafting

Effect: More Armour, Energy Shield or Evasion modifiers. No Life Modifiers.

Name Level Stats Spawn Weighting
of the Underground 1 +500 to Armour if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, two_hand_weapon 0, sceptre 1600, mace 1600, axe 1600, sword 1600, default 0
of the Underground 1 +1000 to Armour if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, one_hand_weapon 0, staff 1600, mace 1600, axe 1600, sword 1600, default 0
of the Underground 1 (25-50)% increased Armour abyss_jewel 0, jewel 0, str_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour and Evasion abyss_jewel 0, jewel 0, str_dex_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour and Energy Shield abyss_jewel 0, jewel 0, str_int_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour, Evasion and Energy Shield abyss_jewel 0, jewel 0, str_dex_int_armour 2000, default 0
of the Underground 1 (20-30)% increased Energy Shield from Body Armour abyss_jewel 0, jewel 0, ring 1600, amulet 1600, belt 1600, default 0
of the Underground 1 20% chance when Hit for double Armour effect abyss_jewel 0, jewel 0, ring 1600, amulet 1600, belt 1600, default 0
of the Underground 1 Ignore all Movement Penalties from Armour abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 +(250-300) to Armour if you’ve Hit an Enemy Recently jewel 300, abyss_jewel 300, default 0
of the Underground 1 (10-20)% chance when Hit for double Armour effect abyss_jewel 0, jewel 0, shield 0, body_armour 0, gloves 0, helmet 0, str_armour 2000, str_int_armour 2000, str_dex_armour 2000, default 0
of the Underground 1 0.5% of Energy Shield Regenerated per second if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, dagger 1600, claw 1600, wand 1600, sceptre 1600, default 0
of the Underground 1 1% of Energy Shield Regenerated per second if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, staff 2000, default 0
of the Underground 1 (25-50)% increased Energy Shield abyss_jewel 0, jewel 0, int_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour and Energy Shield abyss_jewel 0, jewel 0, str_int_armour 2000, default 0
of the Underground 1 (25-50)% increased Evasion and Energy Shield abyss_jewel 0, jewel 0, dex_int_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour, Evasion and Energy Shield abyss_jewel 0, jewel 0, str_dex_int_armour 2000, default 0
of the Underground 1 (20-30)% increased Energy Shield from Body Armour abyss_jewel 0, jewel 0, ring 1600, amulet 1600, belt 1600, default 0
of the Underground 1 0.3% of Energy Shield Regenerated per second if you’ve Hit an Enemy Recently jewel 300, abyss_jewel 300, default 0
of the Underground 1 1% of Energy Shield Regenerated per second abyss_jewel 0, jewel 0, shield 0, body_armour 0, gloves 0, helmet 0, int_armour 2000, dex_int_armour 2000, str_int_armour 2000, default 0
of the Underground 1 0.3% of Spell Damage Leeched as Energy Shield abyss_jewel 0, jewel 0, shield 0, body_armour 0, boots 0, helmet 0, int_armour 2000, dex_int_armour 2000, str_int_armour 2000, default 0
of the Underground 1 +500 to Evasion Rating if Hit an Enemy Recently abyss_jewel 0, jewel 0, two_hand_weapon 0, axe 1600, sword 1600, dagger 1600, claw 1600, default 0
of the Underground 1 +1000 to Evasion Rating if Hit an Enemy Recently abyss_jewel 0, jewel 0, one_hand_weapon 0, axe 1600, sword 1600, bow 1600, default 0
of the Underground 1 (25-50)% increased Evasion Rating abyss_jewel 0, jewel 0, dex_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour and Evasion abyss_jewel 0, jewel 0, str_dex_armour 2000, default 0
of the Underground 1 (25-50)% increased Evasion and Energy Shield abyss_jewel 0, jewel 0, dex_int_armour 2000, default 0
of the Underground 1 (25-50)% increased Armour, Evasion and Energy Shield abyss_jewel 0, jewel 0, str_dex_int_armour 2000, default 0
of the Underground 1 +(250-300) to Evasion Rating if Hit an Enemy Recently jewel 300, abyss_jewel 300, default 0
of the Underground 1 (25-50)% increased Global Evasion Rating when on Full Life abyss_jewel 0, jewel 0, shield 0, body_armour 0, gloves 0, boots 0, dex_armour 2000, dex_int_armour 2000, str_dex_armour 2000, default 0

PoE Dense Fossil Nerf 3.7

  • The Dense Fossil Dense Fossil can no longer craft increased Armour, Evasion or Energy Shield suffix modifiers and now has new mods it can craft on each slot.
  • The Dense Fossil Dense Fossil modifier 15% increased Energy Shield from Body Armour was incorrectly acting multiplicatively with other sources of increased Energy Shield. This has been fixed, and affects all existing items with this modifier. To partially (but intentionally not entirely) compensate for this change, it now grants 20-30% increased Energy Shield from Body Armour. Existing items with this modifier can be updated to the new values with a Divine Orb Divine Orb.

Dense Fossil Farming Guide

The drop location of Dense Fossil Dense Fossil is Azurite Mine.

1. Buy Dense Fossil from Niko

Is sometimes sold by Niko the Mad for 1 000 Azurite

2. As a drop in the following Biomes

  • Fungal Cavern
  • Petrified Forest

Biomes

The Azurite Mine contains six common biomes, each with different monsters, encounters, and common fossil drops. Rarely, a city biome will spawn, which contains better loot and rarely, a special boss, but are much more difficult and denser.

Current theory on weights:

The weight is scaled between the lower and upper entries based on current delve depth. See the table below for data mined values.

Biome Fossils by Rarity Minimum Depth
Depth Weight
Mines Metallic Fossil Metallic FossilSerrated Fossil Serrated FossilPristine Fossil Pristine FossilAetheric Fossil Aetheric Fossil 0 100
40 100
65 0
Fungal Caverns Dense Fossil Dense FossilAberrant Fossil Aberrant FossilPerfect Fossil Perfect FossilCorroded Fossil Corroded FossilGilded Fossil Gilded Fossil 4 0
20 100
Petrified Forest Bound Fossil Bound FossilJagged Fossil Jagged FossilCorroded Fossil Corroded FossilSanctified Fossil Sanctified Fossil 4 0
20 100
Abyssal Depths Aberrant Fossil Aberrant FossilBound Fossil Bound FossilGilded Fossil Gilded FossilLucent Fossil Lucent Fossil 10 0
25 100
Frozen Hollow Frigid Fossil Frigid FossilSerrated Fossil Serrated FossilPrismatic Fossil Prismatic FossilSanctified Fossil Sanctified Fossil 200 0
40 100
Magma Fissure Scorched Fossil Scorched FossilPrismatic Fossil Prismatic FossilPristine Fossil Pristine FossilEnchanted Fossil Enchanted FossilEncrusted Fossil Encrusted Fossil 30 0
50 100
Sulfur Vents Metallic Fossil Metallic FossilPerfect Fossil Perfect FossilAetheric Fossil Aetheric FossilEncrusted Fossil Encrusted Fossil 55 0
75 100
Vaal Outpost 22 0
83 12
600 18
Abyssal City 82 0
83 4
220 12
600 18
Primeval Ruins 219 0
220 4
600 12

How to use Dense Fossil?

Place in a Resonator to influence item crafting.

Dense Fossil

List of delve socketable currency

Item Drop Level Effect(s)
Potent Alchemical Resonator Potent Alchemical Resonator 1 Upgrades a normal item to a rare item
Potent Chaotic Resonator Potent Chaotic Resonator 34 Reforges a rare item with new random modifiers
Powerful Alchemical Resonator Powerful Alchemical Resonator 34 Upgrades a normal item to a rare item
Powerful Chaotic Resonator Powerful Chaotic Resonator 34 Reforges a rare item with new random modifiers
Prime Alchemical Resonator Prime Alchemical Resonator 68 Upgrades a normal item to a rare item
Prime Chaotic Resonator Prime Chaotic Resonator 68 Reforges a rare item with new random modifiers
Primitive Alchemical Resonator Primitive Alchemical Resonator 1 Upgrades a normal item to a rare item
Primitive Chaotic Resonator Primitive Chaotic Resonator 34 Reforges a rare item with new random modifiers

Dense Fossil Acquisition

Drop level 1
Drop location: Azurite Mine
Item class: Stackable Currency
Metadata ID: Metadata/Items/Currency/CurrencyDelveCraftingDefences

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