PoE Has an Abyssal socket: Hollow Fossil Crafting

Has # Abyssal Sockets

Abyss Jewels can be placed into an Abyssal Socket. The following is the List of Abyss Jewels:

Ghastly Eye Jewel
Hypnotic Eye Jewel
Murderous Eye Jewel
Searching Eye Jewel

PoE items with Abyssal socket

How to find items with Abyssal socket

Stat Filters: Has # Abyssal Sockets. Search from Path of Exile Trade.

PoE items with Abyssal socket

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Players can also craft Abyssal socket on an item by using a Hollow Fossil.

Hollow Fossil is a fossil type. Fossils are a special type of poe 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.

How to use Hollow Fossil?

Place a Hollow Fossil in a Resonator to influence item crafting. Effect: Has an Abyssal socket

What is Abyssal socket?

Abyss jewels can be put into normal jewel sockets on your passive skill tree or into an Abyssal Socket on an item. Abyss jewels are always potentially extremely powerful. Therefore, an item with the mod "Has 1 Abyssal Socket" is always expensive.

Use Hollow Fossil crafting weapon, helmet, boots, gloves, body armour

The Spawn Weighting of weapon, helmet, boots, gloves, body armour is 2000. You can use Hollow Fossil to craft them for "Has 1 Abyssal Socket" modifier.

Weapon: Axe, Bow, Claw, Dagger, Mace, Staff, Sword, Wand
Helmet
bootsoots
Gloves
Body Armour

Can not crafting these items

Accessories: Amulet, Belt, Quiver, Ring
Abyss Jewel, Jewel

Do not use Hollow Fossil to craft the above items. For example, craft an Unset Ring or a belt is useless.

Farming Hollow Fossil in Azurite Mine

The drop location of Hollow Fossil is Azurite Mine. Standing on any Waypoint, click the flashing candle icon: "Click to travel to the Mine Encampment", then you will go to the Azurite Mine.

Azurite Mine

There are two ways to obtain Hollow Fossil.

1. Purchase from Niko the Mad

Sometimes, Niko the Mad sells a Hollow Fossil. Niko is one of the five masters. He provides introduction to delves and appears when harvesting Voltaxic Sulphite. He also sells Fossils and Resonators for Azurite.

2. It can be dropped from a room that “Contains Fossils”

Smuggler's Stash (Any Biome)
Haunted Tomb (Fungal Caverns)
Stonewood Hollow (Petrified Forest)
Crystal Spire (Abyssal Depths)
Time-Lost Cavern (Frozen Hollow)
Molten Cavity (Magma Fissure)
Humid Fissure (Sulphur Vents)

In addition, you can also exchange currency items for it. The price of Hollow Fossil is 40 Chaos Orbs. You can buy cheap POE currency from below:

Hollow Fossil Mods for Crafting

Name	Level	Stats	Spawn Weighting
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

Unique Items with Abyssal Socket

The list below shows unique items that are related to abyssal sockets.

Item	Base Item	Level	Stats
Darkness Enthroned	Stygian Vise	1	Has 1 Abyssal Socket Has 1 Abyssal Socket 50% increased Effect of Socketed Jewels
Tombfist	Steelscale Gauntlets	36	Has 1 Abyssal Socket (4-6)% increased maximum Life With a Murderous Eye Jewel Socketed, Intimidate Enemies for 4 seconds on Hit with Attacks With a Searching Eye Jewel Socketed, Maim Enemies for 4 seconds on Hit with Attacks
Tombfist	Steelscale Gauntlets	36	Has 2 Abyssal Sockets (4-6)% increased maximum Life With a Murderous Eye Jewel Socketed, Intimidate Enemies for 4 seconds on Hit with Attacks With a Searching Eye Jewel Socketed, Maim Enemies for 4 seconds on Hit with Attacks
Command of the Pit	Riveted Gloves	37	Has 1 Abyssal Socket (6-10)% increased Cast Speed (4-6)% increased maximum Life With a Ghastly Eye Jewel Socketed, Minions have +1000 to Accuracy Rating With a Hypnotic Eye Jewel Socketed, gain Arcane Surge on Hit with Spells
Command of the Pit	Riveted Gloves	37	Has 2 Abyssal Sockets (6-10)% increased Cast Speed (4-6)% increased maximum Life With a Ghastly Eye Jewel Socketed, Minions have +1000 to Accuracy Rating With a Hypnotic Eye Jewel Socketed, gain Arcane Surge on Hit with Spells
Lightpoacher	Great Crown	53	Has 1 Abyssal Socket Trigger Level 20 Spirit Burst when you Use a Skill while you have a Spirit Charge +(10-15)% to all Elemental Resistances +1 to Maximum Spirit Charges per Abyss Jewel affecting you (15-20)% chance to gain a Spirit Charge on Kill Recover (4-5)% of Life when you lose a Spirit Charge
Lightpoacher	Great Crown	53	Has 2 Abyssal Sockets Trigger Level 20 Spirit Burst when you Use a Skill while you have a Spirit Charge +(10-15)% to all Elemental Resistances +1 to Maximum Spirit Charges per Abyss Jewel affecting you (15-20)% chance to gain a Spirit Charge on Kill Recover (4-5)% of Life when you lose a Spirit Charge
Hale Negator	Mind Cage	65	Has 1 Abyssal Socket (6-8)% increased maximum Life +1 to Maximum Spirit Charges per Abyss Jewel affecting you Gain a Spirit Charge every second You lose all Spirit Charges when taking a Savage Hit Recover (2-3)% of Life when you lose a Spirit Charge Recover (2-3)% of Energy Shield when you lose a Spirit Charge
Hale Negator	Mind Cage	65	Has 2 Abyssal Sockets (6-8)% increased maximum Life +1 to Maximum Spirit Charges per Abyss Jewel affecting you Gain a Spirit Charge every second You lose all Spirit Charges when taking a Savage Hit Recover (2-3)% of Life when you lose a Spirit Charge Recover (2-3)% of Energy Shield when you lose a Spirit Charge
Bubonic Trail	Murder Boots	69	Has 1 Abyssal Socket Triggers Level 20 Death Walk when Equipped (4-6)% increased maximum Life 30% increased Movement Speed 10% increased Damage for each type of Abyss Jewel affecting you
Bubonic Trail	Murder Boots	69	Has 2 Abyssal Sockets Triggers Level 20 Death Walk when Equipped (4-6)% increased maximum Life 30% increased Movement Speed 10% increased Damage for each type of Abyss Jewel affecting you
Shroud of the Lightless	Carnal Armour	71	+(20-25) to maximum Mana Has 1 Abyssal Socket Socketed Gems are Supported by Level 20 Elemental Penetration 20% chance to Trigger Level 20 Shade Form when you Use a Socketed Skill (160-180)% increased Evasion and Energy Shield (6-10)% increased maximum Life (9-15)% increased maximum Mana 1% increased Maximum Life per Abyss Jewel affecting you 1% increased Maximum Mana per Abyss Jewel affecting you

Hollow Fossil

List of delve socketable currency

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