Tarstone compatibility

Which stone goes in which weapon and which sidearm. Pick one to see only its list, or read a grid to see where two pieces of gear actually differ.

Two pools, barely overlapping

The melee and ranged slots draw on separate collections: 38 Tarstones are named by at least one primary and 35 by at least one sidearm, and exactly one appears on both. A stone you found for your weapon is almost never any help to your sidearm.

Within each pool, much of the grid is not a decision. 14 of the 38 go in all 8 weapons, leaving 24 that separate one from another. 9 of the 35 go in all 8 sidearms, leaving 26 that separate one from another. The Only what differs toggle strips each chart down to those.

The game states this one piece of gear at a time. Here it is collected, and readable from the stone's side as well as the gear's.

Stones that fit weapons

38 of 38

Tarstone
Acolyte's StoneAbilityConsume 15 Resolve to perform a charged Light Attack.
Arbiter's PrizeInfusionConsume 30 Resolve to infuse your weapon with Bloodcurse.
Deadman's StoneSupportImproves melee Critical Chance
Devout StoneSupportImproves Resolve gain from melee attacks
Grudge StoneCombatYour Weapon deals a guaranteed Critical Hit
Headsman's StoneSupportImproves melee Critical Damage
Magdalena's MementoAbilityConsume 100 Resolve to rise into the air and unleash a flurry of ruthless strikes.
Parasitic StoneCombatSlaying foes grants you Leech.
Retribution StoneSupportImproves Riposte damage
Shattering StoneSupportImproves melee Stagger Damage
Shrike StoneAbilityConsume 70 Resolve to leap high and plunge your weapon into the ground ahead.
Thief's StoneCombatStriking a foe grants you Warp.
Unwieldly StoneAbilityConsume 25 Resolve to perform a Charged Heavy Attack.
Wounding StoneCombatMelee attacks inflict Perforation
Auspicious StoneSupportImproves melee Critical Chance.
Berserker's StoneSupportImproves melee damage the lower your Health is
Clerik's StoneCombatGrants access to a special Heavy Combo Finisher
Stillblade's StoneCombatGrant access to a special Light Combo Finisher
Tyrant's StoneCombatGrants access to a special Heavy Combo Finisher
Zealot's StoneCombatGrants access to a special Light Combo Finisher
Unyielding StoneCombatYour Weapon light attack combo has Stagger immunity
Voltaic CrownInfusionConsume 30 Resolve to infuse your Weapon with Lightning
Curseblood StoneInfusionConsume 30 Resolve infuse your Weapon with Curse
Duality StoneCombatYour weapon's light attack combo strikes twice.
Lost ClotstoneAbilityConsume 60 Resolve to spin in place and release your weapon with brutal force
Serpent StoneInfusionConsume 15 Resolve to infuse your Weapon with Poison
Torpor StoneInfusionConsume 25 Resolve to infuse your Weapon with Stasis
Captive's ScabstoneAbilityConsume 100 Resolve to swing your weapon in a violet arc, striking down all who stand close
Clockwork ShardstoneAbilityConsume Resolve over time to hold your weapon before you with its chainsaw spinning at full speed
Colossus StoneAbilityConsume 80 Resolve to thrust your weapon into the ground to send shockwaves rippling through nearby foes
Conqueror's RewardAbilityConsume 100 Resolve to drive your weapon forward in a series of swift, piercing thrusts
Hexapod CoreAbilityConsume 60 Resolve to carve through enemies with a rapid succession of strikes
Inflamed ClawstoneInfusionConsume 30 Resolve to unfuse your Weapon with Burn
Infused StoneAbilityConsume 70 Resolve to throw your weapon to strike multiple targets before it circles back to you
Nightgrasp StoneInfusionYour Weapon inflicts Phantom
Scholar's WormstoneAbilityConsume Resolve over time to set the chainsaw in motion augmenting your every attack.
Warden's StoneInfusionConsume 30 Resolve to infuse your Weapon with Frost
Wretchcaller's StoneInfusionConsume 30 Resolve to infuse your Weapon with Trauma

Stones that fit sidearms

35 of 35

Tarstone
Corroded StoneCombatProjectiles start dealing damage over time after hitting their target.
Deadeye StoneSupportImproves ranged Critical Damage
Emberseed StoneInfusionConsume 20 Resolve to infuse your sidearm with Burn. The equipped Sidearm inflicts Burn on Critical Hits only.
Enfeebling StoneCombatProjectiles inflict Fragile
Marksman's StoneSupportImproves ranged Critical Chance
Rupturing StoneCombatProjectiles that strike critically deal Break Damage
Siegebreaker's StoneSupportImproves ranged Stagger Damage
Spite StoneSupportImproves ranged damage the lower your health is.
Volatile FragmentCombatEnemies dying by a ranged attack will explode, dealing splash damage.
Tarblighted TrophyAbilityConsume 40 Resolve to launch a heavy round that detonates above the target, scattering explosive projectiles below.
Charged StoneSupportYour sidearm charges up faster
Ironpiercer's StoneCombatProjectiles pierce through enemies
Confessor's KeepsakeAbilityConsume 60 Resolve to charge your Sidearm, firing a powerful, devastating shot
Fusillade StoneAbilityAt 80 Resolve or higher, unleash a flurry of consecutive shots
Shuddering StoneCombatProjectiles generate a Knockback shockwave on impact
Pulse StoneCombatProjectiles generate a shockwave on impact that pulls enemies in
Solnir ShardAbilityConsume 25 Resolve to launch a heavy round in a parabolic arc that bursts on impact to deal splash damage
Splitting StoneCombatYour Sidearm fires multiple projectiles per shot without consuming additional resolve
Unstable StoneCombatHitting the same enemy 5 times triggers an explosion that deals splash damage
Accursed StoneInfusionConsume 20 Resolve to infuse your Sidearm with Curse
Barrage StoneAbilityConsume 40 Resolve to launch a heavy round that detonates above the target, scattering explosive projectiles below
Hag StoneInfusionConsume 20 Resolve to infuse your Sidearm with Poison
Myriad StoneCombatYour Sidearm fires multiple projectiles in an arc without consuming additional Resolve.
Viletongue HedronInfusionConsume 20 Resolve infuse your Sidearm with Bloodcurse
Voltaic CrownInfusionConsume 30 Resolve to infuse your Weapon with Lightning
Blackblood StoneCombatProjectiles explode mid-air and deal splash damage
Frostshard StoneInfusionConsume 20 Resolve to infuse your Sidearm with Frost
Fulminant StoneAbilityConsume 60 Resolve to fire a heavy-caliber round that triggers multiple explosions around the target
Hand of RockAbilityConsume 80 Resolve to unleash a swarm of relentless homing projectiles
Infested StoneAbilityConsume 60 Resolve to fire a clinging projectile that triggers a massive explosion after a brief delay
Monarch's VestigeInfusionConsume 20 Resolve to infuse your Sidearm with Phantom
Squall StoneCombatProjectiles spin in place for a duration after hitting their target
Summoning StoneAbilityConsume 70 Resolve to summon the last slain foe to fight on your side
Tarred FragmentAbilityConsume 50 Resolve to fire multiple tethered projectiles, spinning at high speed.
Weeping StoneInfusionYour Sidearm inflicts Trauma

6 stones no gear page names yet

These say which slot they go in but appear on no weapon or sidearm's compatibility list — so where they actually fit is not documented yet. Treat the tables above as what is confirmed, not as the whole set.

3 · ShellBulwark Stone, Gloombound Stone, Justiciar's Stone

2 · WeaponChampion's Brooch, Sapper's Stone

1 · SidearmStrange Remnant