PoE Fossil Locations Drop & Crafting Mods

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.

PoE Fossil Locations – Biomes

FossilCan only drop in the Azurite Mine. 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.

Fossil Locations 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

Weight Examples

Depth Weight
50 0
100 100

If your character is below or at depth 50, the biome will not spawn.

If your character is between 50 and 100, the biome will spawn and the weight will increase accordingly;

Depth 51, 2 weight
Depth 52, 4 weight
Depth 99, 98 weight
Depth 100, 100 weight

If your character is below depth 100, the biome will always have a weight of 100

PoE Fossil Effect Modifiers

Item Drop Level Effect(s) Help Text
Aberrant Fossil Aberrant Fossil 1 More Chaos modifiers
No Lightning modifiers
Place in a Resonator to influence item crafting.
Aetheric Fossil Aetheric Fossil 1 More Caster modifiers
Fewer Attack modifiers
Place in a Resonator to influence item crafting.
Bloodstained Fossil Bloodstained Fossil 1 Has a Vaal modifier Place in a Resonator to influence item crafting.
Bound Fossil Bound Fossil 1 More Minion or Aura modifiers Place in a Resonator to influence item crafting.
Corroded Fossil Corroded Fossil 1 More Poison Poison or Bleeding modifiers
No Elemental modifiers
Place in a Resonator to influence item crafting.
Dense Fossil Dense Fossil 1 More Armour, Energy Shield or Evasion modifiers
No Life Modifiers
Place in a Resonator to influence item crafting.
Enchanted Fossil Enchanted Fossil 1 Has a Labyrinth Enchantment Place in a Resonator to influence item crafting.
Encrusted Fossil Encrusted Fossil 1 More sockets
Can have white sockets
Place in a Resonator to influence item crafting.
Faceted Fossil Faceted Fossil 1 More Socketed Gem Level modifiers Place in a Resonator to influence item crafting.
Fractured Fossil Fractured Fossil 1 Creates a mirrored copy Place in a Resonator to influence item crafting.
Frigid Fossil Frigid Fossil 1 More Cold modifiers
No Fire modifiers
Place in a Resonator to influence item crafting.
Gilded Fossil Gilded Fossil 1 Item is overvalued by vendors Place in a Resonator to influence item crafting.
Glyphic Fossil Glyphic Fossil 1 Has a Corrupt Essence modifier Place in a Resonator to influence item crafting.
Hollow Fossil Hollow Fossil 1 Has an Abyssal socket Place in a Resonator to influence item crafting.
Jagged Fossil Jagged Fossil 1 More Physical modifiers
No Chaos modifiers
Place in a Resonator to influence item crafting.
Lucent Fossil Lucent Fossil 1 More Mana modifiers
No Speed modifiers
Place in a Resonator to influence item crafting.
Metallic Fossil Metallic Fossil 1 More Lightning modifiers
No Physical modifiers
Place in a Resonator to influence item crafting.
Perfect Fossil Perfect Fossil 1 Improved Quality Place in a Resonator to influence item crafting.
Prismatic Fossil Prismatic Fossil 1 More Elemental modifiers
No Poison Poison or Bleeding modifiers
Place in a Resonator to influence item crafting.
Pristine Fossil Pristine Fossil 1 More Life modifiers
No Armour, Energy Shield or Evasion modifiers
Place in a Resonator to influence item crafting.
Sanctified Fossil Sanctified Fossil 1 Numeric modifier values are lucky
High Level modifiers are more common
Place in a Resonator to influence item crafting.
Scorched Fossil Scorched Fossil 1 More Fire modifiers
No Cold modifiers
Place in a Resonator to influence item crafting.
Serrated Fossil Serrated Fossil 1 More Attack modifiers
Fewer Caster modifiers
Place in a Resonator to influence item crafting.
Shuddering Fossil Shuddering Fossil 1 More Speed modifiers
No Mana modifiers
Place in a Resonator to influence item crafting.
Tangled Fossil Tangled Fossil 1 Can have any Fossil modifiers Place in a Resonator to influence item crafting.

PoE Fossil Crafting Mods

Name Level Stats Spawn Weighting
Subterranean 1 Damage Penetrates (7-10)% Fire Resistance abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 1 Damage Penetrates (16-20)% Fire Resistance abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 1 Damage Penetrates 1% Fire Resistance jewel 1000, abyss_jewel 1000, default 0
Subterranean 1 +(20-35)% to Fire Resistance quiver 0, shield 0, body_armour 0, boots 0, gloves 0, default 0
Subterranean 1 0.2% of Fire Damage Leeched as Life abyss_jewel 0, jewel 0, ring 600, default 0
Subterranean 1 (20-30)% increased Fire Damage abyss_jewel 0, jewel 0, amulet 2000, belt 2000, default 0
Subterranean 1 Damage Penetrates (7-10)% Cold Resistance abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 1 Damage Penetrates (16-20)% Cold Resistance abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 1 Damage Penetrates 1% Cold Resistance jewel 1000, abyss_jewel 1000, default 0
Subterranean 1 +(20-35)% to Cold Resistance quiver 0, shield 0, body_armour 0, boots 0, gloves 0, default 0
Subterranean 1 0.2% of Cold Damage Leeched as Life abyss_jewel 0, jewel 0, ring 600, default 0
Subterranean 1 (20-30)% increased Cold Damage abyss_jewel 0, jewel 0, amulet 2000, belt 2000, default 0
Subterranean 1 Damage Penetrates (7-10)% Lightning Resistance abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 1 Damage Penetrates (16-20)% Lightning Resistance abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 1 Damage Penetrates 1% Lightning Resistance jewel 1000, abyss_jewel 1000, default 0
Subterranean 1 +(20-35)% to Lightning Resistance quiver 0, shield 0, body_armour 0, boots 0, gloves 0, default 0
Subterranean 1 0.2% of Lightning Damage Leeched as Life abyss_jewel 0, jewel 0, ring 600, default 0
Subterranean 1 (20-30)% increased Lightning Damage abyss_jewel 0, jewel 0, amulet 2000, belt 2000, default 0
Subterranean 1 (3-5)% additional Physical Damage Reduction abyss_jewel 0, jewel 0, shield 2000, quiver 2000, default 0
Subterranean 1 Adds (6-8) to (9-11) Physical Damage abyss_jewel 0, jewel 0, gloves 2000, default 0
Subterranean 1 0.2% of Physical Damage Leeched as Life abyss_jewel 0, jewel 0, ring 600, default 0
Subterranean 1 (20-30)% increased Global Physical Damage abyss_jewel 0, jewel 0, amulet 2000, belt 2000, default 0
Subterranean 1 (2-1)% reduced Physical Damage taken over time jewel 1000, abyss_jewel 1000, default 0
Subterranean 1 +(20-35)% to Chaos Resistance abyss_jewel 0, jewel 0, quiver 0, shield 0, body_armour 0, boots 0, gloves 0, default 0
Subterranean 1 0.2% of Chaos Damage Leeched as Life abyss_jewel 0, jewel 0, ring 600, default 0
Subterranean 1 (20-30)% increased Chaos Damage abyss_jewel 0, jewel 0, amulet 2000, belt 2000, default 0
Subterranean 1 +(25-40) to maximum Life, (3-5)% increased maximum Life abyss_jewel 0, jewel 0, body_armour 2000, default 0
Subterranean 1 +(15-25) to maximum Life, (2-3)% increased maximum Life abyss_jewel 0, jewel 0, shield 2000, boots 2000, helmet 2000, gloves 2000, default 0
Subterranean 1 0.3% of Life Regenerated per second jewel 1000, abyss_jewel 1000, default 0
Subterranean 1 (4-6)% increased Global Defences jewel 1000, abyss_jewel 1000, default 0
Subterranean 1 60% chance for Poisons inflicted with this Weapon to deal 100% more Damage abyss_jewel 0, jewel 0, weapon 2000, default 0
Subterranean 1 60% chance for Bleeding inflicted with this Weapon to deal 100% more Damage abyss_jewel 0, jewel 0, weapon 2000, default 0
Subterranean 1 Adds (7-11) to (12-18) Physical Damage against Poisoned Enemies abyss_jewel 0, jewel 0, gloves 1600, default 0
Subterranean 1 Adds (7-11) to (12-18) Physical Damage against Bleeding Enemies abyss_jewel 0, jewel 0, gloves 1600, default 0
Subterranean 1 Attacks with this Weapon Penetrate (16-20)% Elemental Resistances abyss_jewel 0, jewel 0, weapon 1000, default 0
Subterranean 1 (40-60)% increased Elemental Damage abyss_jewel 0, jewel 0, one_hand_weapon 0, default 0
Subterranean 1 (80-120)% increased Elemental Damage abyss_jewel 0, jewel 0, two_hand_weapon 0, default 0
Subterranean 1 Damage Penetrates (3-5)% Elemental Resistances abyss_jewel 0, jewel 0, quiver 1600, amulet 1600, default 0
Subterranean 1 Damage Penetrates 1% Elemental Resistances abyss_jewel 1600, jewel 1600, default 0
Subterranean 1 Socketed Skills deal 40% more Spell Damage abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 1 Socketed Skills deal 20% more Spell Damage abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 1 Socketed Skills deal 40% more Attack Damage abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 1 Socketed Skills deal 20% more Attack Damage abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 1 Minions deal (30-44)% increased Damage abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 25 Minions deal (45-59)% increased Damage abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
Subterranean 50 Minions deal (60-74)% increased Damage abyss_jewel 0, jewel 0, one_hand_weapon 1000, default 0
Subterranean 75 Minions deal (75-80)% increased Damage abyss_jewel 0, jewel 0, one_hand_weapon 500, default 0
Subterranean 1 Minions deal (51-70)% increased Damage abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 25 Minions deal (71-90)% increased Damage abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
Subterranean 50 Minions deal (91-110)% increased Damage abyss_jewel 0, jewel 0, two_hand_weapon 1000, default 0
Subterranean 75 Minions deal (111-130)% increased Damage abyss_jewel 0, jewel 0, two_hand_weapon 500, default 0
Subterranean 1 Minions deal (20-30)% increased Damage abyss_jewel 0, jewel 0, gloves 2000, default 0
Subterranean 1 Minions deal (14-16)% increased Damage abyss_jewel 2000, default 0
Subterranean 1 Found Items have a 10% chance to drop Corrupted in Area, Area is inhabited by the Vaal map 1000, default 0
Subterranean 1 (8-10)% chance to Avoid Fire Damage when Hit abyss_jewel 0, jewel 0, body_armour 2000, shield 2000, quiver 2000, default 0
Subterranean 1 Adds (20-25) to (26-35) Fire Damage abyss_jewel 0, jewel 0, gloves 2000, default 0
Subterranean 1 +2 to Level of Socketed Fire Gems abyss_jewel 0, jewel 0, boots 2000, default 0
Subterranean 1 (6-10)% chance to Avoid Cold Damage when Hit abyss_jewel 0, jewel 0, body_armour 2000, shield 2000, quiver 2000, default 0
Subterranean 1 Adds (20-25) to (26-35) Cold Damage abyss_jewel 0, jewel 0, gloves 2000, default 0
Subterranean 1 +2 to Level of Socketed Cold Gems abyss_jewel 0, jewel 0, boots 2000, default 0
Subterranean 1 (6-10)% chance to Avoid Lightning Damage when Hit abyss_jewel 0, jewel 0, body_armour 2000, shield 2000, quiver 2000, default 0
Subterranean 1 Adds 1 to (48-60) Lightning Damage abyss_jewel 0, jewel 0, gloves 2000, default 0
Subterranean 1 +2 to Level of Socketed Lightning Gems abyss_jewel 0, jewel 0, boots 2000, default 0
Subterranean 1 Adds (15-20) to (21-30) Chaos Damage abyss_jewel 0, jewel 0, gloves 2000, default 0
Subterranean 1 +2 to Level of Socketed Chaos Gems abyss_jewel 0, jewel 0, boots 2000, default 0
Subterranean 1 (19-25)% increased Elemental Damage abyss_jewel 0, jewel 0, one_hand_weapon 1000, default 0
Subterranean 25 (26-32)% increased Elemental Damage abyss_jewel 0, jewel 0, one_hand_weapon 1000, default 0
Subterranean 50 (33-39)% increased Elemental Damage abyss_jewel 0, jewel 0, one_hand_weapon 1000, default 0
Subterranean 75 (40-60)% increased Elemental Damage abyss_jewel 0, jewel 0, one_hand_weapon 1000, default 0
Subterranean 1 (37-50)% increased Elemental Damage abyss_jewel 0, jewel 0, two_hand_weapon 1000, default 0
Subterranean 25 (51-65)% increased Elemental Damage abyss_jewel 0, jewel 0, two_hand_weapon 1000, default 0
Subterranean 50 (66-79)% increased Elemental Damage abyss_jewel 0, jewel 0, two_hand_weapon 1000, default 0
Subterranean 75 (80-120)% increased Elemental Damage abyss_jewel 0, jewel 0, two_hand_weapon 1000, default 0
of the Underground 1 Nearby Enemies have -9% to Fire Resistance, -9% to Fire Resistance abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 Nearby Enemies have -9% to Cold Resistance, -9% to Cold Resistance abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 Nearby Enemies have -9% to Lightning Resistance, -9% to Lightning Resistance abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 15% chance to Intimidate Enemies for 4 seconds on Hit abyss_jewel 0, jewel 0, weapon 2000, default 0
of the Underground 1 -(75-50) Physical Damage taken abyss_jewel 0, jewel 0, body_armour 0, default 0
of the Underground 1 (3-5)% additional Physical Damage Reduction while moving abyss_jewel 0, jewel 0, boots 2000, default 0
of the Underground 1 Nearby Enemies take 9% increased Physical Damage, 9% increased Physical Damage taken abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 Curse Enemies with Level 10 Despair Despair on Hit abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
of the Underground 1 Curse Enemies with Level 10 Despair Despair on Hit abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
of the Underground 1 Nearby Enemies have -9% to Chaos Resistance, -9% to Chaos Resistance abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 (13-19)% increased Chaos Damage jewel 1000, abyss_jewel 1000, default 0
of the Underground 1 (50-60)% increased Damage when on Full Life abyss_jewel 0, jewel 0, weapon 2000, default 0
of the Underground 1 (100-120)% increased Damage when on Full Life abyss_jewel 0, jewel 0, weapon 2000, default 0
of the Underground 1 1% of Life Regenerated per second abyss_jewel 0, jewel 0, quiver 2000, shield 2000, body_armour 2000, helmet 2000, gloves 2000, boots 2000, default 0
of the Underground 1 (20-30)% increased Life Recovery from Flasks abyss_jewel 0, jewel 0, ring 2000, amulet 2000, belt 2000, default 0
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 +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 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 Armour abyss_jewel 0, jewel 0, str_armour 2000, 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 Energy Shield abyss_jewel 0, jewel 0, int_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 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 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 +(1-2)% chance to Evade Attacks abyss_jewel 0, jewel 0, quiver 1600, ring 1600, amulet 1600, belt 1600, default 0
of the Underground 1 50% chance to Avoid being Poisoned abyss_jewel 0, jewel 0, shield 1600, helmet 1600, boots 1600, body_armour 1600, default 0
of the Underground 1 50% chance to avoid Bleeding abyss_jewel 0, jewel 0, shield 1600, helmet 1600, boots 1600, body_armour 1600, default 0
of the Underground 1 (30-40)% increased Damage with Ailments abyss_jewel 0, jewel 0, quiver 1600, ring 1600, amulet 1600, belt 1600, default 0
of the Underground 1 (15-20)% increased Damage with Ailments jewel 1000, abyss_jewel 1000, default 0
of the Underground 1 (20-30)% reduced Elemental Ailment Duration on you abyss_jewel 0, jewel 0, shield 2000, body_armour 2000, helmet 2000, gloves 2000, boots 2000, default 0
of the Underground 1 (25-30)% increased Elemental Damage abyss_jewel 0, jewel 0, belt 1600, ring 1600, default 0
of the Underground 1 Socketed Gems are Supported by Level 1 Arcane Surge Arcane Surge abyss_jewel 0, jewel 0, body_armour 600, default 0
of the Underground 1 Socketed Skills have 18% increased Cast Speed abyss_jewel 0, jewel 0, gloves 2000, default 0
of the Underground 1 Socketed Spells have 20% reduced Mana Cost abyss_jewel 0, jewel 0, shield 2000, boots 2000, helmet 2000, default 0
of the Underground 1 (15-20)% chance to Avoid interruption from Stuns while Casting jewel 1000, abyss_jewel 1000, default 0
of the Underground 1 Socketed Gems are Supported by Level 1 Maim Maim abyss_jewel 0, jewel 0, body_armour 600, default 0
of the Underground 1 Socketed Skills have 18% increased Attack Speed abyss_jewel 0, jewel 0, gloves 2000, default 0
of the Underground 1 Socketed Attacks have -15 to Total Mana Cost abyss_jewel 0, jewel 0, body_armour 2000, shield 2000, boots 2000, helmet 2000, default 0
of the Underground 1 0.3% of Attack Damage Leeched as Life jewel 1000, abyss_jewel 1000, default 0
of the Underground 1 0.4% of Mana Regenerated per second if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, one_hand_weapon 2000, shield 2000, default 0
of the Underground 1 0.8% of Mana Regenerated per second if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
of the Underground 1 (5-10)% of Damage is taken from Mana before Life abyss_jewel 0, jewel 0, body_armour 2000, default 0
of the Underground 1 (50-70)% increased Mana Regeneration Rate while moving abyss_jewel 0, jewel 0, boots 2000, default 0
of the Underground 1 +(2-4) Mana gained for each Enemy hit by your Attacks abyss_jewel 0, jewel 0, gloves 2000, default 0
of the Underground 1 0.5% of Mana Regenerated per second abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 (8-12)% increased Mana Recovery rate abyss_jewel 0, jewel 0, belt 2000, amulet 2000, default 0
of the Underground 1 (4-6)% reduced Mana Cost of Skills abyss_jewel 0, jewel 0, ring 2000, default 0
of the Underground 1 (20-30)% increased maximum Mana abyss_jewel 0, jewel 0, quiver 2000, default 0
of the Underground 1 (2-3)% of Damage taken gained as Mana over 4 seconds when Hit jewel 1000, abyss_jewel 1000, default 0
of the Underground 1 10% chance to gain Onslaught Onslaught for 4 seconds on Kill abyss_jewel 0, jewel 0, one_hand_weapon 2000, shield 2000, default 0
of the Underground 1 20% chance to gain Onslaught Onslaught for 4 seconds on Kill abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
of the Underground 1 (15-20)% chance to gain a Frenzy Frenzy Charge when Hit abyss_jewel 0, jewel 0, body_armour 2000, default 0
of the Underground 1 (4-6)% increased Movement Speed if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, boots 2000, default 0
of the Underground 1 (5-10)% increased Attack and Cast Speed if you’ve Hit an Enemy Recently abyss_jewel 0, jewel 0, gloves 2000, 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 Cannot be Chilled or Frozen while moving abyss_jewel 0, jewel 0, amulet 2000, default 0
of the Underground 1 (15-20)% chance to gain Onslaught Onslaught when you use a Flask abyss_jewel 0, jewel 0, belt 2000, default 0
of the Underground 1 Cannot be Shocked or Ignited while moving abyss_jewel 0, jewel 0, ring 2000, default 0
of the Underground 1 (3-5)% chance to gain a Frenzy Frenzy Charge when you Hit a Rare or Unique Enemy abyss_jewel 0, jewel 0, quiver 2000, default 0
of the Underground 1 (5-10)% chance to gain Onslaught Onslaught when you use a Flask jewel 1000, abyss_jewel 1000, default 0
of the Underground 1 Auras from your Skills grant 2% increased Damage to you and Allies abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
of the Underground 1 Auras from your Skills grant 4% increased Damage to you and Allies abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
of the Underground 74 Minions have (15-30)% increased Movement Speed abyss_jewel 0, jewel 0, quiver 2000, ring 2000, amulet 2000, default 0
of the Underground 74 Minions have (20-30)% increased maximum Life abyss_jewel 0, jewel 0, body_armour 2000, shield 2000, belt 2000, default 0
of the Underground 1 +1 to maximum number of Spectres abyss_jewel 0, jewel 0, boots 2000, default 0
of the Underground 1 (20-25)% increased Effect of Auras on you abyss_jewel 0, jewel 0, body_armour 2000, default 0
of the Underground 1 (5-4)% reduced Mana Reserved abyss_jewel 0, jewel 0, helmet 2000, default 0
of the Underground 1 Minions have (4-6)% increased Attack Speed, Minions have (4-6)% increased Cast Speed abyss_jewel 0, jewel 2000, default 0
of the Underground 1 +1 to Level of Socketed Strength Gems abyss_jewel 0, jewel 0, staff 1000, sceptre 1000, mace 1600, axe 1000, sword 1000, bow 750, dagger 750, claw 750, wand 750, str_armour 1600, int_armour 750, dex_armour 750, str_dex_armour 1000, str_int_armour 1000, dex_int_armour 750, str_dex_int_armour 1000, unset_ring 1000, default 0
of the Underground 1 +1 to Level of Socketed Dexterity Gems abyss_jewel 0, jewel 0, staff 750, sceptre 750, mace 750, axe 1000, sword 1000, bow 1600, dagger 1000, claw 1000, wand 750, str_armour 750, int_armour 750, dex_armour 1600, str_dex_armour 1000, str_int_armour 750, dex_int_armour 1000, str_dex_int_armour 1000, unset_ring 1000, default 0
of the Underground 1 +1 to Level of Socketed Intelligence Gems abyss_jewel 0, jewel 0, staff 1000, sceptre 1000, mace 750, axe 750, sword 750, bow 750, dagger 1000, claw 1000, wand 1600, str_armour 750, int_armour 1600, dex_armour 750, str_dex_armour 750, str_int_armour 1000, dex_int_armour 1000, str_dex_int_armour 1000, unset_ring 1000, default 0
of the Underground 1 Has 1 Abyssal Socket abyss_jewel 0, jewel 0, weapon 2000, helmet 2000, boots 2000, gloves 2000, body_armour 2000, default 0
of the Underground 1 20% reduced Soul Cost of Vaal Skills abyss_jewel 0, jewel 0, one_hand_weapon 2000, default 0
of the Underground 1 40% reduced Soul Cost of Vaal Skills abyss_jewel 0, jewel 0, two_hand_weapon 2000, default 0
of the Underground 1 (5-8)% chance to gain an additional Vaal Soul on Kill abyss_jewel 0, jewel 0, helmet 2000, body_armour 2000, boots 2000, shield 2000, default 0
of the Underground 1 (3-5)% chance to gain an additional Vaal Soul on Kill abyss_jewel 2000, jewel 2000, default 0
of the Underground 1 (80-120)% increased Vaal Skill Critical Strike Chance abyss_jewel 0, jewel 0, quiver 2000, gloves 2000, default 0
of the Underground 1 (15-25)% increased Vaal Skill Effect Duration abyss_jewel 0, jewel 0, amulet 2000, default 0
of the Underground 1 Vaal Skills deal (20-40)% increased Damage abyss_jewel 0, jewel 0, belt 2000, ring 2000, default 0
of the Underground 1 +(30-40)% Chaos Resistance against Damage Over Time abyss_jewel 0, jewel 0, body_armour 2000, shield 2000, quiver 2000, default 0
of the Underground 1 -(34-20) Physical Damage taken abyss_jewel 0, jewel 0, body_armour 2000, default 0
of the Underground 30 -(49-35) Physical Damage taken abyss_jewel 0, jewel 0, body_armour 2000, default 0
of the Underground 60 -(75-50) Physical Damage taken abyss_jewel 0, jewel 0, body_armour 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 +(250-300) to Evasion Rating if Hit an Enemy Recently jewel 300, abyss_jewel 300, 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 +(10-20)% to Quality local_item_quality 0, abyss_jewel 0, jewel 0, shield 2000, body_armour 2000, 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 (3-4)% Chance to Block Spell Damage abyss_jewel 0, jewel 0, shield 0, body_armour 0, boots 0, gloves 0, int_armour 2000, dex_int_armour 2000, str_int_armour 2000, default 0
of the Underground 1 (3-4)% chance to Dodge Attack Hits, (3-4)% chance to Dodge Spell Hits spell_dodge_mod 0, abyss_jewel 0, jewel 0, shield 0, body_armour 0, gloves 0, helmet 0, dex_armour 2000, dex_int_armour 2000, str_dex_armour 2000, default 0
of the Underground 1 (4-6)% Global chance to Blind Blind Enemies on hit abyss_jewel 0, jewel 0, shield 0, body_armour 0, boots 0, helmet 0, dex_armour 2000, dex_int_armour 2000, str_dex_armour 2000, 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
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

How to use Faceted Fossil?

Place in a Resonator to influence item crafting.

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

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