Trinkets

Trinkets are a kind of collectible with their designated slot that provide passive bonuses. With some exceptions, only one trinket can be carried at a time and the currently held trinket must be dropped if Isaac wishes to carry another.

Fiend Folio adds 258 trinkets to the game, including a new category of trinkets known as "rock trinkets" that are mostly exclusive to one character, Golem.

This page is about Trinkets added in Fiend Folio. More information about Trinkets in general can be found in the vanilla page.

For information regarding regular collectibles, see Items.

Trinkets

Name	Icon	Flavor Text	Description
Angry Faic		Heartier bosses	Bosses and mini-bosses will start with 10% more HP, but will drop 1 additional heart upon being defeated.
Autopsy Kit		Organ harvesting	Bombed Shopkeepers will drop Red Hearts or Bone Hearts instead of coins. Heart chances increase with the quality of coins replaced.
Bifurcated Stars		Rush the boss, reap rewards	Reveals the Boss Room on the map. The Boss Room exit door is replaced with a door to the Treasure Room after the room is cleared.
Bloody Sandpaper		STOP!	Isaac no longer has movement momentum.
Bomb Token		Explosives up	Increases the damage dealt by placed Bombs by 100. Grants a 1.5× damage multiplier to Dr. Fetus Bombs (instead of the flat damage up).
Broken Record		Stuck on repeat	30% chance for items to be rerolled into an item Isaac already has. Will not reroll into items that are completely useless when stacked.
Chili Powder		The ol' spicy keychain	Transforms all Keys into Spicy Keys. Spicy Keys grant an extra key upon being picked up, but deals damage to the player.
Chunk of Tar		Sludge friends	Spawns 1-3 friendly Blots on room entry.
Conjoined Card		Miniature emperor	An additional Mini-Boss Room will generate on every floor.
Cursed Urn		Fragile revival	0.75× tear delay multiplier. If Isaac is about to take fatal damage, transforms them into China. Shatters if dropped, turning into Shattered Cursed Urn and losing its ability to revive.
Dealmakers		Specil deals	Randomizes prices of items for sale. Some items for sale will have constantly shifting prices.
Dud's Flower		Dud bombs	Causes all Bombs placed by Isaac to become Copper Bombs.
Egg Penny		Wealth of progeny	Chance to spawn a Fragile Bobby on picking up a coin.
Energy Searcher		Draw energy	Increased chance for Energy Cards to drop on clearing a room. Energy Cards have a 33% chance of spawning another one when used.
Eternal Car Battery		???	Active items will activate their effects 4-6 times when used, with a 50% chance for the held active item to disappear afterwards.
Extra Vessel		HP up	Stores an extra Red Heart, which acts as an extra Red Heart container.
Faulty Fuse		Tastes like burnt copper	Increased chance for Copper Bombs to spawn.
Flea Circus		Infested	20% chance to spawn a random Flea after killing an enemy.
Flea of Deluge		I bring Deluge	Spawns a Cyan Flea when entering a new room. Cyan Fleas create a ring of 8 tears on hit.
Flea of Meltdown		I bring Meltdown	Spawns an Orange Flea when entering a new room. Orange Fleas can burn enemies.
Flea of Pollution		I bring Pollution	Spawns a Purple Flea when entering a new room. Purple Fleas will leave behind a black creep puddle on hit.
Flea of Propaganda		I bring Propaganda	Spawns a Beige Flea when entering a new room. Beige Fleas will charm enemies on hit.
Fool's Gold		Chance for more money?	Cursed Pennies have a higher chance to drop on room clear. Cursed Pennies have a higher chance to replace Pennies.
Fortune Grub		The slot machines whisper	+1 luck. Beggars and Slot Machines will display a fortune when interacted with, or alongside their usual payouts.
Fortune Worm		Blah blah!	+0.2 shot speed. +2 luck. Luck-affected chance to fire fortune cookies that deal 1.05× damage and will display a random fortune on screen when hitting an enemy.
Frog Puppet		Greener on the other side	If the player takes fatal damage, they will revive as Slippy with Golden Frog Head and 3 Red Heart containers.
Fushigi		Make it float!	Luck-affected chance to fire a metal tear with the Eye of the Occult effect with increased range and double damage.
Fuzzy Penny		Wealth of fuzz	Spawns a Blue Skuzz when picking up a coin.
Fuzzy Pickle		Reference up!	Grants +0.1 damage for each reference item / trinket Isaac has, while active items grant +0.5 damage instead. Loose references only grant half of the corresponding damage.
GMO Penny		Wealth of preservatives	Chance to take a random pill when picking up a coin. Scales with luck.
Grabber's Enemy		Caught you!	Flying Grabber hand familiars spawn that drag Isaac, pickups, and enemies around.
Hatred		Double tap distilled malice	Spawns a small black clot familiar next to Isaac that moves and shoots through his same inputs. The clot charges forwards when a shooting key is double-tapped, leaving a trail of black creep and respawning after hitting a wall.
Heartache		Hurts on the inside	Damage taken will add a Broken Heart to the health bar, instead of depleting hearts.
IOU		I'll give it back soon	15% chance, affected by luck, for room clear rewards to be replaced with a trinket. If held at the end of the run, spawns a random trinket at the start of the next run.
Jevilstail		I can do anything!	For each new room Isaac enters, grants one wacky effect in a rotating list which can be either helpful, harmful, or neither.
Jigsaw Puzzle Box		There's always a piece missing...	Only once, drops a Puzzle Piece on floor start. Raises the chance for Puzzle Pieces to drop. Once a Puzzle Fortune is completed, this trinket destroys itself.
Leftovers		Save it for later	Overhealed health gained from hearts will be left on the ground for later use.
Locked Shackle		All stats up, missing its key	All stats up. Can't be dropped. Picking up a Key has a 25% chance to destroy the trinket and consume the key.
Lost Flower Crown		Forgotten memories	Once a floor, activates the Eraser effect on a random enemy, removing that enemy from the run.
Massive Amethyst		Crystallised keepers	Shopkeepers in Secret Rooms are replaced with amethyst clusters. Amethyst clusters drop runes when destroyed.
Molten Penny		Wealth of labor	2% chance to activate the Smelter effect when picking up a Penny. Scales with luck.
Nesting Doll		Surprises inside	Whenever a Beggar is killed, has an 80% chance to spawn a different random Beggar in its place.
Petrified Gel		It tastes lucky?	Poops have a chance to be converted into Shampoo. Shampoo will no longer spawn Drops and will drop better rewards.
Pocket Dice		Lucky! New rolls each floor	Drops 2 random Glass Dice and a Penny at the start of each floor.
Rainbow Bean		Intimate farts	When standing near enemies, has a chance of expelling a random fart.
Red Ribbon		Twice as eternal	Transforms all Eternal Heart pickups into Full Eternal Hearts while held. Full Eternal Hearts grant a Red Heart container immediately after being picked up.
Shard of China		Put yourself back together	Overhealing with Red Hearts fills a special health bar. Filling this health bar accumulates a damage boost, up to +1.5 damage with 3 hearts filled. Smelts itself once the bar is completely filled, making the trinket's damage boost permanent.
Sharp Penny		Wealth of pain	Chance to activate the Dull Razor effect when picking up a coin.
Shattered Cursed Urn		Residual fragility	0.9× tear delay multiplier. If Isaac is holding Mom's Box and is about to take fatal damage, transforms them into China.
Solemn Vow		Do no harm	Allows the player to see enemy health.
Spire Growth		Power in the cards	Using a card with a number on it will grant a fading damage up that scales based on the number.
Swallowed M90		PCHEW!	Isaac pulls out an M90 when hurt, causing the next shot to be a fast, piercing bullet that does 3.5× Isaac's damage with self-knockback.
Tattered Frog Puppet		You're green with it	If the player takes fatal damage, they will revive as Slippy with Golden Frog Head and 3 Red Heart containers. Can only be obtained if the player has already revived with Frog Puppet while holding Mom's Box.
The Middle Hand		The middle-hand path reaps dire rewards	50% chance for any Chest or Locked Chest to be replaced with a Dire Chest.
The Right Hand		The right-hand path reaps light rewards	Chests have a 1/3 chance of becoming Eternal Chests.
Top Rock		All stats up! It's all downhill from here.	All stats up. Prevents stats from being increased while held.
Trinity Worm		Vwoo Vwoo Vwoo	+0.4 tears. +12.5 range. Isaac's tears become spectral and travel in the shape of a triquetra, or 'Holy Trinity'.
Wackey		Wackier key drops	Key drops have an equal chance to become any key type.
Yin-Yang Orb		Homing amulet	Grants a 16.67% chance, affected by luck, to fire a tear with 1.25× damage and with strong homing.

Rocks

Rocks are special kinds of trinkets added in The Reheated Update that replace regular trinkets when playing as Golem. Rock trinkets are unable to appear for other characters outside of use of certain items, such as Golem's Rock and Soul of Golem.

Rock trinkets are separated into three types:

• Fossils have special effects when crushed by the Bismuth Golem.
• Geodes have increased power and/or additional effects if the player is holding another geode.
• Normal Rocks are rock trinkets that do not fall in the former two criteria.

Each rock trinket can also come in one of six possible "rarities" — Common, Rare, Fiendish, Self Insert, Extremely Rare, and Unobtainable. The rarity of a rock trinket dictates how likely they are to appear.

There are a total of 185 rocks that Golem can collect, separated into 122 normal rocks, 33 Fossils, and 30 Geodes.

Name	Icon	Flavor Text	Rock Type	Rock Rarity	Description
A Bit of Trollite		Just a little	Normal	Extremely Rare	More Troll Bombs.
Achilles		Directional weak spot	Normal	Common	Enemies gain a random weak point. When damaged from that direction, they take 50% more damage.
Amazonite		Wait for delivery	Normal	Rare	The first purchase in a Shop each floor is heavily discounted, but disappears when bought. These bought items reappear at the start of the next floor.
Arachnite		Squirming within the stones	Normal	Common	Blue Spiders are replaced with friendly Rock Spiders. Friendly Rock Spiders have a chance to replace with Tinted Rock Spiders or Coal Spiders.
Arcade Rock		Glitchy slots	Normal	Common	Chance for Machines to not consume coins when played.
Arcane Rock		Homing chance, homing DMG up	Normal	Common	Tears have a chance to become homing, which scales with luck. Homing tears deal 2 more damage.
Arrow Pebble		Range + Shotspeed up	Normal	Common	+1.25 range. +0.2 shot speed.
Atlas' Burden		Pass it to others	Normal	Fiendish	-0.4 speed. Dealing damage to enemies has a chance to drop a boulder onto them, slowing them down and periodically dealing heavy damage.
Bedrock		Zzzz	Normal	Rare	1/3 chance for a bed to appear at the start of every floor.
Blood Diamond		Bleeding tears	Normal	Common	luck-based chance to fire tears that cause Bleeding.
Bloodstone		Strength in pain	Normal	Rare	+0.2 temporary damage whenever an enemy dies. +1 temporary damage when Golem takes damage.
Bloody Rock		Hurting shots	Normal	Common	Every 4th tear fired becomes a double damage blood tear.
Brick Rock		Throw it!	Normal	Common	Firing tears throws the Brick Rock as a projectile that deals 15 damage and drops on the floor afterwards.
Brimlin		Brimstone friend	Normal	Fiendish	Sits on Golem's head and periodically launches Brimstone beams in a random direction. Will continue to attack when dropped on the ground.
Broken Gaping Grimlin		Enemy sucker	Normal	Rare	Sits on Golem's head and periodically begins sucking in all nearby enemies towards itself. Will continue to suck in enemies while dropped on the ground.
Carnal Carnelian		Close range bonus	Normal	Common	Grants a damage and speed bonus depending on how close Golem is to enemies.
Cast Gem		Crystalline friend	Normal	Rare	Grants a homing Nyx gem that can be cast while attacking and sticks to enemies, dealing damage and inflicting Bruising. Has special synergies with certain items.
Cauldron Grimlin		Duplicate friend	Normal	Fiendish	Sits on Golem's head and periodically spawns a friendly copy of an enemy in the room. Will continue to create friendly copies of enemies while dropped on the ground.
Charcoal		Krampus' knockoff	Normal	Common	15% chance scaling with luck to fire a very slow A Lump of Coal tear with increased range.
Chunk of Gallium		Slowing trails	Normal	Common	15% chance to fire a grey tear that leaves behind a trail of slowing creep.
Citrine Pulp		Short ranged juice	Normal	Common	Small chance to fire a short-ranged splash of yellow tears. When enemies are close, there is a small chance to create a puddle of yellow creep.
Clover Pebble		Luck up	Normal	Common	+2 luck.
Constant Grimlin		Directional friend	Normal	Common	Sits on Golem's head and constantly shoots tears in a single direction, chosen at random. Will continue to shoot while dropped on the ground.
Constant Rock Shooter		Keep shooting!	Normal	Rare	+0.8 tears. Golem can no longer stop firing tears.
Cross Grimlin		Cross friend	Normal	Rare	Sits on Golem's head and constantly fires 4 tears alternating between the cardinal and ordinal directions. Will continue to attack while dropped on the ground.
Dad's Legendary Golden Rock		Finally, golden grind	Normal	Fiendish	Always a golden trinket. When grinding, always grants a golden Rare or better rock trinket.
Dirt Clump		Free to Grind	Normal	Extremely Rare	Can be grinded at the Mining Machine for free.
Double Rubble		Grind x2	Normal	Rare	Grinding this in the Mining Machine will create two Common, Rare or Fiendish rock trinkets.
Electrum		Actives discharge	Normal	Rare	Using an active item shocks all nearby enemies. Damage scales with charge amount and damage stat.
Emetic Antimony		Timed puke	Normal	Rare	Periodically, the next tear Golem fires will be an Ipecac projectile.
Eye Grimlin		Laser friend	Normal	Rare	Sits on Golem's head and constantly fires a rotating Technology 2 laser. Will continue to attack while dropped on the ground.
Fake Rock		Never far from the lock	Normal	Common	Drops a Key on pickup. If there is a locked door, the first broken Rock in the room drops a Key.
Fetal Stone		Prehistoric friend	Normal	Rare	Grants a rocky familiar that fires rock tears that have a chance to confuse enemies.
Fiendish Amethyst		Fiends galore!	Normal	Fiendish	On entering an uncleared room, spawns four Amethyst Minions. Amethyst Minions disappear on room clear and will not drop a Heart.
Focus Crystal		Deal bonus damage to nearby enemies	Normal	Common	Increase damage dealt to enemies within 2.5 tiles by 20% (+20% per stack).
Friendly Rapid Fire Opal		Fully-automatic, locked and loaded!	Normal	Fiendish	Start each room with an assault rifle that shoots bullets at an increased fire rate, range and shot speed. The rifle holds a limited amount of ammo, and is only able to fire 12 bullets before disappearing.
Fruity Pebble		All stats up	Normal	Common	+0.15 speed. +0.15 tears. +0.3 damage. +0.75 range. +0.18 shot speed. +1 luck.
Gaping Grimlin		Pickup sucker	Normal	Common	Sits on Golem's head and Constantly sucks in pickups towards Golem. Will continue to suck in pickups while dropped on the ground.
Gas Pocket		Noxious rocks	Normal	Common	Rocks occasionally leak poison gas clouds. When broken, rocks have a chance to spawn large clouds of gas.
Gay Garnet		A conversation	Normal	Unobtainable	Chance to fire Peppermint freezing flames. Only obtained by combining Sapphic Sapphire and Homoerotic Ruby.
God's Marble		Hallowed ground	Normal	Fiendish	Chance to shoot yellow tears which create a temporary holy aura where they land, which scales with luck. When an enemy enters the aura, it will create a circle of several Crack the Sky beams of light.
Gravestone		Spooky desecration	Normal	Rare	Taking damage spawns a Purgatory or Hungry Soul ghost. Chance for broken Rocks to spawn a ghost.
Grimlin		Grimace friend	Normal	Common	Sits on Golem's head and shoots tears at nearby enemies. Will continue to attack enemies while dropped on the ground.
Grossular		Gross out pulse	Normal	Common	Golem periodically creates a pulse that causes nearby enemies to become fearful, poisoned, or confused.
Guarded Garnet		Shield on damage	Normal	Common	Luck-affected for Golem to gain a single-use shield on taking damage. The shield lasts for the current room and blocks one additional hit, knocking back nearby enemies away.
Hailstone		Chilling aura	Normal	Rare	Enemies close to Golem are slowed, and freeze into ice statues on death.
Hearthstone		Random card effects!	Normal	Common	Activates a random positive effect when using a card.
Heavy Metal		Speed down, tank up	Normal	Common	-0.15 speed. Grants damage that scales off of how slow Golem is. Chance to block damage taken that scales with how slow Golem is.
Hector		Fickle friend	Normal	Rare	Damage and tears up. speed down. Forcibly dropped when taking damage.
Henge Rock		Rock booster	Normal	Fiendish	Increases the power/effectiveness of every rock trinket Golem owns by 30%.
Hiddenite		Line of sight	Normal	Common	Entering and then breaking the line of sight from an enemy for the first time will confuse them briefly.
Homoerotic Ruby		Eternal flame, baby!	Normal	Rare	Female enemies periodically have a chance to become berserk. Chance to fire flaming tears that burns enemies.
Insatiable Apatite		Heart devourer	Normal	Fiendish	Golem gains temporary damage when picking up hearts. When picking up hearts while at full health, the damage boost is doubled. Some heart types have special effects.
Jesus Rock		Back from the dead	Normal	Rare	Upon death, revives Golem in the current room with 6 hearts in his health bar.
Keystone		Unlock bonus	Normal	Rare	+0.56 tears and +0.1 speed for the floor whenever Golem uses a key.
Knife Pebble		DMG up	Normal	Common	+1.25 damage.
Leaky Rock		You're leaking...	Normal	Common	Golem leaves a trail of stationary tears while he moves. The frequency of the tears scales with Golem's tears stat.
Limestone		Sour stone	Normal	Common	Golem leaves a trail of lime creep that deals 50% of his damage. Citrus related enemies become friendly. Sourpatches have a chance to be replaced with Limepatches.
Lithopedian		A stoney of your own	Normal	Common	Spawns a Stoney familiar that pushes enemies around and blocks shots.
Lost Artifact		Mew mew fairies	Normal	Fiendish	Upon clearing rooms, spawns a random amount of Fairy Fly familiars of different sizes. Fairy Flies deal contact damage to enemies, and die after some time.
Magnetic Sand		Tears up, magnetic tears	Normal	Common	+0.8 tears and −0.35 damage. Grants a chance to shoot a Lodestone tear that magnetizes enemies.
Meat Slab		The sweats!	Normal	Rare	Golem constantly sweats out arced tears. Sweating rate increases based on the amount of empty Red Heart containers Golem has.
Mineral Rock		Rub rock -> all stats up	Normal	Common	All stats up while actively pressing against Rocks.
Minichibisidian		Replacement bonies	Normal	Self Insert	Randomly replaces enemies with Bonies of equivalent health.
Molten Slag		Smelting reroll	Normal	Rare	Enemies that get close to golem have a chance to be burned. When grinded, activates Smelter and smelt's Golem's other held trinket.
Moonstone		Look to la luna	Normal	Common	Grants +1 luck, +0.38 range, +0.57 tears, or +0.3 shot speed when entering a Secret Room. Bonuses are only applied while holding the trinket.
Nitro Crystal		Boosts from money	Normal	Rare	Picking up coins fuels Golem's nitro, giving them a speed and tears up while active.
Obsidian Grindstone		Power up, rock grinder	Normal	Fiendish	Damage up and tears up, boosted if holding another rock trinket. Every 30 tears, reroll the other held Trinket. Extra effects do not apply to Pocket Sand.
Oddly Smooth Stone		Better hearts	Normal	Common	Start each combat with 1 Dexterity. Dexterity improves life gained from hearts.
Onion Rock		Throwable friends	Normal	Fiendish	Grants Brickmin familiars that can be aimed and launched while nearby. There are 3 different Brickmin which have different effects and behaviors. Brickmin will be gained every 3 rooms, to a cap of 4.
Ore Penny		Wealth of Stone	Normal	Rare	50% chance to gain an extra Penny when picking up coins. Increased chance for Rocks to be replaced with Fool's Gold Rocks.
Pocket Rock-it		Rock-et science	Normal	Fiendish	Chance to fire a rocket tear that homes in on enemies. Rockets shoot low damage tears when close to enemies. Rockets pop into a tear pattern on impact, depending on its color.
Pocket Sand		It does nothing	Normal	Unobtainable	No effect whatsoever. Does not drop naturally, only obtained through the effects of some other rock trinkets.
Power Rock		Rubbled recharge	Normal	Rare	Breaking Rocks has a small chance to recharge Golem's held active items by 1.
Pure Quartz		Shield on complete soul heart loss	Normal	Rare	Losing all Soul Hearts in the health bar grants a Holy Mantle shield and invulnerability for 10 seconds.
Rai Stone		Gift from Mammon	Normal	Common	15% chance for enemies to drop a Penny on death that flickers and disappears after a short time.
Ramblin' Opal		Crystal spores	Normal	Fiendish	Spawns friendly Shiitake Spores as time goes on, with a maximum of 3 out at a time.
Rebar Rock		Reinforced red hearts	Normal	Common	25% chance for Red Heart damage to be blocked. Red Heart damage is always reduced to half of a heart.
Rebellion Rock		Overcome thine adversaries	Normal	Rare	When Golem takes damage, deals minor damage to all nearby enemies, knocks them back, and inflicts them with bruised.
Ribbed Rock		For her pleasure	Normal	Common	Grants 1 empty Bone Heart on first pickup. Health upgrades grant Bone Hearts instead of Red Heart containers.
Ridiculous Metal		Rhythmic rewards	Normal	Fiendish	Upon entering an uncleared room with enemies, prompts the player to play a rhythm minigame. Firing tears with the correct timing (indicated by notes) will deal damage to all enemies in the room. The damage per note increases for each consecutive note hit successfully.
Robot Rock		Bwaaabwabwabwabwaaaaw	Normal	Rare	Creates 2 spinning rainbow lasers around Golem that inflict random Status Effects.
Rock Cake		Healing grinds	Normal	Common	Grinding rock trinkets heals Golem for a Half Red Heart.
Rock Candy		Sugar crystals	Normal	Rare	Chance to fire crystal tears that charm enemies and deal 1.5× damage. Enemies have a small chance to drop a sugar crystal on death that heals for a Half Red Heart, but flickers and disappears after 2 seconds.
Rock from an Abyss		They feel doomed	Normal	Rare	Luck-based chance to apply Doom to 3 random enemies at the start of the room.
Rock Worm		Unga bunga	Normal	Common	+0.4 fire rate and +0.2 flat damage. Grants a random worm trinket effect at the start of the floor, and for the duration of the floor.
Rolling Rock		Speed up, keep the momentum	Normal	Extremely Rare	+0.05 speed upon clearing a room without taking damage, capping at a bonus of +0.15. This bonus is set to 0 after taking damage or dropping Rolling Rock.
Rose Quartz		Projectile shield	Normal	Common	Taking damage grants a temporary shield that blocks projectiles for 6 seconds.
Rough Rock		Grind it!	Normal	Common	Guaranteed to grind into a rock trinket with a rarity of Rare or higher.
Salt Lamp		Battery-powered aura	Normal	Rare	Repels close by enemies and projectiles, but slowly drains in power over time. Can be recharged with Lil' Batteries.
Sand Castle		Fragile fortifications	Normal	Common	Blocks damage Golem would take. After blocking 3 hits in total, turns into Pocket Sand.
Sand Dollar		Cash in at the shop	Normal	Rare	Dropping the trinket in a Shop exchanges it for several coins.
Sandstone		Easily weathered	Normal	Common	Chance to fire a high-damage rock tear that inflicts confusion and shrinks in size and damage over time. Turns into Pocket Sand when taking explosive damage.
Sapphic Sapphire		Stone butch blue	Normal	Common	Female enemies will become charmed. Chance to fire tears which slow enemies hit, and freeze them into ice statues on death.
Scented Rock		Charm aura	Normal	Common	Charms enemies in a small radius around Golem.
Sensory Grimlin		Sensational friend	Normal	Rare	Sits on Golem's head and shoots tears while Golem is walking in the direction it is aiming. Will continue to shoot while dropped on the ground.
Shamrock		Fragile luck	Normal	Common	+4 luck. Reduces Golem's luck by 1 for each instance of damage taken, for the current floor.
Shard of Golem		Golem's reward	Normal	Fiendish	Overhealing with Red Hearts fills a special health bar. Filling this health bar accumulates a damage boost, up to +1.8 damage with 4 hearts filled. Smelts itself once the bar is completely filled, making the trinket's damage boost permanent.
Shard of Golgotha		Chain thy enemy	Normal	Fiendish	Chains the enemy with the highest health at the start of every room (like Anima Sola), preventing them from moving and attacking for a few seconds.
Sheep Rock		Sleepy tears	Normal	Rare	7% chance scaling with luck to fire a tear that decelerates and floats in place and makes enemies drowsy.
Sheetrock		Restful sleep	Normal	Rare	Heals Golem for 2 Red Hearts at the start of each floor. Sleeping in a bed grants 2 Soul Hearts.
Shoe Pebble		Speed up	Normal	Common	+0.3 speed.
Silver Tongue		Cheaper grind	Normal	Rare	The Mining Machine costs 1 less Penny to use. When smelted, only has a 50% chance to activate.
Slippy Rock		Speed up, friction down	Normal	Common	+0.15 speed. Reduces Golem's friction while moving.
Smaller Rock		Find its kin	Normal	Common	Destroying a Tinted Rock gives -0.06 speed and +0.33 damage.
Smoky Quartz		On hit smokescreen	Normal	Common	Confuses nearby enemies and grants a temporary speed boost upon taking damage.
Soap Stone		Clean tears on room clear	Normal	Common	Clears all projectiles on room clear and when taking damage. When Isaac takes damage, spawns several friendly Bubbles.
Spiked Rock		One prick, spikes don't hurt	Normal	Common	Hurts Golem for half a heart when first picked up; this damage is non-fatal. Grants immunity to damage from Spikes and Spiked Chests.
Spirit Urn		Wisps for dangerous encounters	Normal	Common	Grants 3 normal wisps upon starting a Challenge Room, or after entering a Boss Room or Mini-Boss Room.
Stalactite		The ceiling crumbles	Normal	Common	Explosions cause rock projectiles that deal 2× Golem's damage to fall from the sky randomly. Falling rock projectiles created by other enemies no longer harm Golem.
Star Sapphire		Movement detector	Normal	Rare	Spawns an orbital familiar that wobbly points towards the nearest enemy or projectile, blocks shots and deals contact damage.
Steadfast Stone		Last ditch crushing	Normal	Rare	When taking lethal damage, prevents it and instead crushes a trinket that Golem is actively holding.
Stromatolite		Rocky vitality	Normal	Rare	Rocks have a 2.5% chance to drop a Half Red Heart when destroyed. Tinted Rocks and Super Special Rocks have a 25% chance to drop a bonus Half Soul Heart when destroyed.
Sturdy Rock		Health on start	Normal	Common	Grants 1 Soul Heart at the start of a floor.
Sulfur Crystal		Periodic power	Normal	Rare	Temporarily grants the effects of Brimstone every 4 rooms.
Sun Shard		Your very own solar system	Normal	Fiendish	Grants a planet from The Sun as an orbital which has special effects when blocking shots.
Teardrop Pebble		Tears up	Normal	Common	+0.72 tears.
Technological Ruby 2.0		Extra security, all yours for the cheap price of..	Normal	Fiendish	Golem creates 2 laser rings around themselves. The outer ring deals 10% damage, while the inner ring deals 25% damage.
Thorny Rock		On-hit shockwave	Normal	Common	Create a radial shockwave when damaged.
Throwlomite		Throwing stones	Normal	Common	Periodically tosses a rock tear at the nearest enemy in a short distance.
Thunder Egg		Incubated nodule	Normal	Rare	-0.1 speed. Each room has a chance for the Thunder Egg to crack open into another Rare or Fiendish rock.
Tiger's Eye		Stony gaze	Normal	Rare	Spawns a Tiger's Eye familiar that bounces around the room, dealing contact damage and blocking shots. Bounces directly towards the closest enemy when bouncing off a wall.
Time-lost Diamond		Rewind when hit	Normal	Fiendish	Activates the Glowing Hourglass effect upon being hit for the first time in a room.
Tinted Heart		A soul deep within	Normal	Common	Chance to drop a Red Heart when taking damage. Drops a Soul Heart instead with explosive damage, along with a bomb, key or Chest.
Trimlin		Triple friend	Normal	Rare	Sits on Golem's head and fires a triple shot at nearby enemies. Will continue to attack enemies while dropped on the ground.
Twenty-Sided Emerald		Proximity-based reroll	Normal	Fiendish	Standing still near a pickup rerolls it after 3 seconds. Any individual pickup can only be rerolled up to 3 times.
Twin Tuffs		Twin rewards	Normal	Common	(25 + 2.5 × Luck)% chance to turn pickups into their doubled equivalent. (15 + 1.5 × Luck)% chance to double room clear rewards.
Twinkling Rock		Geode grind	Normal	Common	Grinds into a Common or Rare geode.
Vessel Rock		Rocky heart container	Normal	Rare	Stores an extra Red Heart, which acts as an extra Red Heart container. Will break and turn into Pocket Sand when taking damage while empty.
Vomit Grimlin		Explosive friend	Normal	Rare	Sits on Golem's head and lobs arced Ipecac projectiles at nearby enemies. Will continue to attack enemies while dropped on the ground.
Wetstone		Bubbly	Normal	Common	Entering an uncleared room spawns friendly Bubbles that drift around, deal damage to enemies, and block shots. Taking damage spawns additional Bubbles.
Wetstone Grimlin		Bubbly friend	Normal	Rare	Sits on Golem's head and blows tiny friendly Bubbles that drift around, deal damage and block shots. Will continue to blow bubbles while dropped on the ground.
Wormhole Rock		Oh, wormhole?	Normal	Fiendish	Spawns two wormholes in random locations of the room. Tears and projectiles that enter a portal will emerge from the other, aimed towards enemies and sometimes gaining additional effects. The wormholes will occasionally burst into tears and change positions.

Name	Icon	Flavor Text	Rock Type	Rock Rarity	Description
Balanced Fossil		Balanced room rewards, crush effect	Fossil	Common	50% chance for the room clear reward to be replaced with either a Red Heart, Penny, Bomb or Key based on which type Golem has very little of. Crush Effect: Spawns 3 coins, bombs or keys that Golem has the least of.
Beeter Fossil		Sweet honeyed amber, crush effect	Fossil	Rare	When shooting a tear, Golem shoots an additional, weaker tear at an angle. The angle of the tear increments with each previous tear fired. Crush Effect: Spawns a friendly Beeter.
Bomb Sack Fossil		Rocky bombs, crush effect	Fossil	Rare	Bombs create a ring of rock waves when they explode. Crush Effect: Drops 5 bombs.
Brain Fossil		Early homing, crush effect	Fossil	Rare	Grants Golem's tears homing for a short period after being fired. Crush Effect: Drops I - The Magician.
Buried Fossil		Look at what you dug up, crush effect	Fossil	Rare	Each floor has a marked spot that can be bombed to spawn a fossil. Dirt Patches can be opened with a bomb's explosion. Crush Effect: Gives a random fossil.
Canned Fossil		Power of beans, crush effect	Fossil	Common	Creates a random fart when taking damage. Crush Effect: Spawns a friendly Charmed Litter Bug.
Colossal Fossil		Multiple effects when crushed	Fossil	Rare	Doubles Golem's tear size. Crush Effect: Activates the Crush Effects of 3 other random Fossils.
Coprolite Fossil		Fecal artifact, crush effect	Fossil	Common	Spawns a Blue Fly when entering a new uncleared room. Crush Effect: Spawns 12 Blue Flies.
Coral Fossil		You feel drowned, crush effect	Fossil	Common	Heals a Red Heart of health on pickup. 25% chance that scales with luck for Golem to shoot 4 additional tears in the ordinal directions. Crush Effect: Spawns 3 friendly Drowned Chargers and heals for 1 Red Heart.
Death Cap Fossil		It's still potent, crush effect	Fossil	Rare	For every room cleared, slightly reduces all stats. Crush Effect: Increases all stats proportional to the amount of rooms cleared.
Explosive Fossil		More bombs, crush effect	Fossil	Rare	13% chance to drop a Bomb on room clear. Increased chance for Rocks to be replaced with Bomb Rocks. Crush Effect: Creates a Mama Mega! explosion in the next 3 uncleared rooms.
Fish Fossil		Wasteland king, crush effect	Fossil	Common	Spawns 1-4 Blue Flies when taking damage. Crush Effect: Spawns a friendly Portal.
Fly Fossil		Friend 'till the end, crush effect	Fossil	Rare	Spawns a Yellow Locust when entering a new uncleared room. Crush Effect: Spawns a Pretty Fly familiar.
Fortune Worm Fossil		The future from the past, crush effect	Fossil	Rare	+0.2 shot speed. +2 luck. Luck-affected chance to fire fortune cookie tears which deal 1.05x damage and display fortunes on hit. Crush Effect: Spawns an extra Soul Heart, and displays 3 random fortunes.
Fossilized Blessing		Gift of Eden, crush effect	Fossil	Rare	+0.4 tears. Crush Effect: Grants a random rock trinket at the start of the next run.
Fossilized Fossil		Fossil duplicator, crush effect	Fossil	Common	When another fossil is crushed, their Crush Effect is activated twice. Crush Effect: Activates the Crush Effect of another held fossil.
GMO Fossil		Pills from bosses, crush effect	Fossil	Rare	Golem is forced to consume 2 random pills after clearing the Boss Room, Mini-Boss Room or Boss Rush. Crush Effect: Golem is forced to consume 3 random pills.
Hollow Fossil		Darkness is contained within, crush effect	Fossil	Fiendish	+1.35 damage. Crush Effect: Guarantees a Devil Room or Angel Room to appear, and spawns Black Hearts instead of Soul Hearts from the Bismuth Golem.
Max's Fossil		Dog howell, crush effect	Fossil	Rare	Howls when next to a Secret Room. Crush Effect: Reveals the next encountered Tinted Rock.
Molten Fossil		Smelted power, crush effect	Fossil	Rare	Passively improves the effectiveness of smelted rock trinkets. Crush Effect: Gives a random Common rock trinket and smelts it onto Golem.
Necromantic Fossil		Bring back the dead, crush effect	Fossil	Rare	Chance to spawn a Book of the Dead bone orbital when killing an enemy. Crush Effect: Spawns a Fossil that has been previously crushed this run.
Petrified Sock		Hard as a rock, crush effect	Fossil	Rare	10% chance that scales with luck to shoot petrifying tears. Crush Effect: Grants a random passive item from the Baby Shop item pool.
Primordial Fossil		Starter kit, crush effect	Fossil	Rare	1/15 chance to fire a small barrage of Mysterious Liquid tears instead of a normal tear. Crush Effect: Spawns Golem's starting rock trinkets, Dirt Clump and Rolling Rock.
Refund Fossil		Sand is free, crush effect	Fossil	Fiendish	Crushing other Fossils drops Pocket Sand. Pocket Sand can be grinded at the Mining Machine for free. Crush Effect: Drops 2 copies of Pocket Sand.
Rerolligan Fossil		Rerolling tears, crush effect	Fossil	Rare	10% chance that scales with luck to fire dice tears that reroll enemies. Crush Effect: Spawns a random Glass Dice.
Runic Fossil		Brittle runes, crush effect	Fossil	Common	As Golem, normal trinket drops always reroll into runes. Using runes drops a Rune Shard. Crush Effect: Spawns 4 Rune Shards.
Sack Fossil		More sacks, crush effect	Fossil	Common	10% chance for random pickup drops to become a Sack. Crush Effect: Spawns a random Sack.
Skuzz Fossil		Friend 'till the end, crush effect	Fossil	Rare	Spawns 2-3 Purple Fleas when entering a new uncleared room. Crush Effect: Spawns 5-7 Blue Skuzzes.
Sword Fossil		Small stats up, crush effect	Fossil	Rare	While held: +1.00 damage, +0.27 tears, +0.75 range, and +0.20 shot speed. Crush Effect: Applies 50% of the stats granted by Sword Fossil permanently.
Thank-You Fossil		Bountiful beggars, crush effect	Fossil	Common	Beggars pay out their rewards twice. Crush Effect: Drops XX - Judgement.
The Left Fossil		The fossil reaps dark rewards, crush effect	Fossil	Common	All Chests are replaced with Red Chests. Crush Effect: Spawns a Red Chest.
Trippy Fossil		Huh whuh, crush effect	Fossil	Rare	13% chance that scales with luck to fire a tear that shrinks enemies. Crush Effect: Shrinks Golem's size slightly.
Value Fossil		Discounts in store, crush effect	Fossil	Common	All items for sale in Shops are 1 cent cheaper. Crush Effect: Drops 3 Pennies.

Name	Icon	Flavor Text	Rock Type	Rock Rarity	Description
Calzone Geode		Maggot shot, geode bonus	Geode	Rare	5% chance that scales with luck to fire a Chubber maggot projectile that boomerangs back towards Golem and marks enemies. Geode Bonus: +10% chance to fire a maggot projectile.
Chain Geode		Chained rock demolition, geode bonus	Geode	Common	Destroying a Rock has a 40% chance to break other adjacent rocks. Geode Bonus: Adjacent rocks have a 70% chance to break, along with a 20% chance for pits to fill.
Curved Geode		DMG up, geode bonus	Geode	Common	+1 damage. Geode Bonus: +0.5 extra damage.
Fractal Geode		Don't look too deep, geode bonus	Geode	Rare	15% chance that scales with luck to fire a spiraling tear that causes enemies to become drowsy. Geode Bonus: Increases the odds to shoot a spiraling tear by 20%, and the tear has a 1/3 chance to cause enemies to immediately fall asleep.
Fragmented Onyx Geode		Entangled tears, geode bonus	Geode	Rare	10% chance, scaling with luck, to shoot a tear that inflicts fear. Geode Bonus: +5% to the chance, and enemies afflicted with fear take extra damage equal to the Devil Deal chance.
Geode Fossil		Best of both worlds, geode bonus + crush effect	Geode & Fossil	Fiendish	+1.5 range. Geode Bonus: +0.75 bonus range. Crush Effect: Spawns a Common or Rare geode. If the Geode Bonus is active, spawns two geodes.
GMO Geode		Potent pills, geode bonus	Geode	Fiendish	Taking a pill will also consume a second random pill. Geode Bonus: Also consumes a third additional pill, which will always be a positive effect.
Haunted Geode		Phantom shot, geode bonus	Geode	Common	20% chance to fire spectral and piercing tears, scales with luck. Geode Bonus: Multiplies chance to fire a spectral and piercing tear by 1.5×.
Health Geode		Second wind, geode bonus	Geode	Common	When Golem drops to 1 Red Heart or less in his health bar, fully heals all Red Heart containers and destroys this trinket. Geode Bonus: +1 Soul Heart when dropping to 1 Red Heart or less.
Little Geode		Size down, geode bonus	Geode	Common	Reduces Golem's size. Geode Bonus: Golem's size is reduced further.
Lob Geode		Lobbed shots, geode bonus	Geode	Common	+1.00 range. Tears are now shot in an arc. Geode Bonus: +0.50 extra range.
Lucky Geode		Luck up, geode bonus	Geode	Rare	+1 luck. Geode Bonus: Bonus +2 luck.
Phlegmy Geode		Booger shot, geode bonus	Geode	Rare	10% chance that increases with luck to fire a Sinus Infection tear. Geode Bonus: Booger tears apply slowness to enemies.
Placebeode		Perma-geode-bonus prescription	Geode	Fiendish	Permanently activates the Geode Bonus of other geodes when smelted.
Prismatic Geode		Prism power, geode bonus	Geode	Fiendish	12% chance for enemies to drop Prism Shards on death that boost random stats based on their color for 10 seconds. 25% chance to drop an extra shard on room clear. Geode Bonus: Shard duration is increased by 5 seconds and doubled in potency.
Quantum Geode		Entangled tears, geode bonus	Geode	Rare	Fire tears in a triple shot. Once a tear hits an enemy, the rest vanish. Geode Bonus: If holding another geode, the rest of the tears vanish once two land.
Quick Geode		Quick return, geode bonus	Geode	Common	Sets Golem's speed to 1.75 in cleared rooms. Geode Bonus: +0.10 speed.
Rubber Geode		Rubbery tears, geode bonus	Geode	Common	Chance to fire bouncing tennis balls that inflicts bruising and deal additional knockback. Geode Bonus: Increases the chance to fire a tennis ball, as well as its knockback and shot speed.
Rusty Geode		Losing luster, geode bonus	Geode	Common	+8 damage that decays over time. Geode Bonus: Damage bonus decays at a slower rate.
Sodalite Geode		Sickly sweet enhydro, geode bonus	Geode	Rare	luck-affected chance to shoot an Imp Soda critical tear that deals quintuple damage. Geode Bonus: Increases the odds to shoot a critical tear.
Swallowed Geode		Gulp, geode bonus	Geode	Common	Spawns a Penny when taking damage. Geode Bonus: 33% chance to spawn a Double Penny instead.
Technological Geode		Technological influence, geode bonus	Geode	Rare	Fire a short-ranged Technology 2 beam that deals 30% damage. Geode Bonus: Fire 2 parallel beams instead.
Tipsy Geode		On the rocks, geode bonus	Geode	Rare	+2 damage. Golem's movement slowly shifts about randomly. Geode Bonus: Increases the damage bonus and intensity of the random movement.
Tough Geode		Crush resistant, geode bonus	Geode	Rare	20% chance to not destroy a rock trinket when crushed at the Bismuth Golem. Geode Bonus: Increases the chance by another 20%.
Umbilical Geode		Fetal protection, geode bonus	Geode	Common	Chance to spawn a Gemini familiar when taking damage. Spawns a Little Steven familiar for the room when entering with half a heart of health or less. Geode Bonus: Chance of generating a Gemini familiar are increased, and Little Steven can spawn at only one heart of health or less.
Vinyl Geode		Two sided buffs, geode bonus	Geode	Rare	Flips between two states depending on the current floor: Flips to its A Side on even-numbered floors which increases damage and shot speed. Flips to its B Side on odd-numbered floors which increases tears and speed. Geode Bonus: Grants a smaller stat boost that is opposite of the current side.
Voodoo Geode		Curses are power, geode bonus	Geode	Common	+1.5 damage when a Curse is active on the floor. +0.35 damage for the floor after entering a Curse Room. Geode Bonus: Damage boost is increased by 50%.
Warm Geode		Warmth power, geode bonus	Geode	Common	Increases damage and shot speed when standing close to a Fire Place. Being inside of "warm" floors passively grants the stat boosts. Geode Bonus: Tears also gain a chance to burn enemies when standing near a fire.
Webby Geode		Slowing shot, geode bonus	Geode	Common	20% chance that scales with luck to fire a slowing tear. Geode Bonus: Slowing tears leave large puddles of white creep if they hit an enemy.

Name	Icon	Flavor Text	Rock Type	Rock Rarity	Description
Breakfast Fossil		HP up, crush effect	Fossil	Unobtainable	Crush Effect: +1 Red Heart container. Can only appear if the rock trinket pool is depleted.
Dogrock Rock		He likes you!	Normal	Unobtainable	Slows enemies in a radius around Golem. Creates funny visuals and sounds. Can't be obtained in a normal run.
Fool's Unobtainium		Now find the real one!	Normal	Unobtainable	Supposedly unobtainable, but can be acquired with Azurite Spindown or debug console commands.
Unobtainium		How did you get this?	Normal	Unobtainable	True to its name, this rock trinket cannot be obtained. Giving it to Isaac through debug console commands will instantly remove it.

Extras

When playing as Golem, most standard trinkets will be rerolled into another pickup as they spawn. However, some standard trinkets will not. These are:

• Petrified Poop, Lucky Rock and Shiny Rock from the vanilla game.
• Fool's Gold, Massive Amethyst and Top Rock from the Fiend Folio MOD.

Additionally, Petrified Poop is treated as a fossil and will activate the effect of A Card Against Humanity when crushed.

Notes

• Geode Fossil is a unique rock trinket, as it counts both as a fossil and as a geode.
• Some rocks exist to replace set trinket drops when playing as Golem:
  • Counterfeit Penny is replaced by Ore Penny.
  • The Left Hand is replaced by The Left Fossil.
  • Swallowed Penny is replaced by Swallowed Geode.
  • Umbilical Cord is replaced by Umbilical Geode.
• Two of the lesser-used rarities, those being Extremely Rare, Self-Insert, are rarer than Fiendish and are some of the rarest Rocks in the game. Rocks with the Unobtainable rarity are unable to drop naturally at all.

Trivia

• The initial Afterbirth+ release of Fiend Folio only had 10 trinkets.
  • The Reheated Update added 39 trinkets for a total of 49, without including the rock trinkets or sub-variants of trinkets such as Tattered Frog Puppet or Shattered Cursed Urn.