Formic Rock

formic rock elden ring wiki guide 200px
item effects icon elden ring wiki guide 55px 18pxEffect
Material used for crafting items
item effects icon elden ring wiki guide 55px 18pxScaling
obtained icon elden ring wiki guide 18pxObtained
Found near Ainsel River and other places where giant ants live

Formic Rock is a Crafting Material in Elden Ring. Crafting Materials are resources that can be obtained throughout The Lands Between and used to create a wide variety of items. 


Rock formed from solidified giant ant venom. Highly acidic.
Material used for crafting items.

Found near Ainsel River and other places where giant ants live.


Where to find Formic Rock in Elden Ring

Formic Rock found in the overworld does not respawn after resting at a Site of Grace.

Dropped by
Enemy Drop rate Additional info
Giant Ant Queen 5.00% -
Giant Ant 1.50% -


Farming locations


Formic Rock Guide for Elden Ring

Formic Rock can be used to craft the following items:


Elden Ring Formic Rock Notes & Tips

  • You can hold up to 999 Formic Rock.
  • You can store up to 999 Formic Rock.
  • Sell Value: runes currency elden ring wiki guide 18100
  • Notes and player tips go here.


Elden Ring Crafting Materials
Aeonian Butterfly  ♦  Albinauric Bloodclot  ♦  Altus Bloom  ♦  Arteria Leaf  ♦  Beast Blood  ♦  Beast Liver  ♦  Blood-Tainted Excrement  ♦  Bloodrose  ♦  Budding Cave Moss  ♦  Budding Horn  ♦  Cave Moss  ♦  Crab Eggs  ♦  Cracked Crystal  ♦  Cracked Pot  ♦  Crystal Bud  ♦  Crystal Cave Moss  ♦  Dewkissed Herba  ♦  Erdleaf Flower  ♦  Eye of Yelough  ♦  Faded Erdleaf Flower  ♦  Fire Blossom  ♦  Flight Pinion  ♦  Four-Toed Fowl Foot  ♦  Fulgurbloom  ♦  Glintstone Firefly  ♦  Glintstone Scrap  ♦  Gold Firefly  ♦  Gold-Tinged Excrement  ♦  Golden Centipede  ♦  Golden Dung  ♦  Golden Rowa  ♦  Golden Sunflower  ♦  Grave Violet  ♦  Gravel Stone  ♦  Great Dragonfly Head  ♦  Hefty Beast Bone  ♦  Herba  ♦  Hidden Plumage  ♦  Human Bone Shard  ♦  Land Octopus Ovary  ♦  Living Jar Shard  ♦  Lump of Flesh  ♦  Melted Mushroom  ♦  Miquella's Lily  ♦  Miranda Powder  ♦  Mushroom  ♦  Nascent Butterfly  ♦  Old Fang  ♦  Poisonbloom  ♦  Rimed Crystal Bud  ♦  Rimed Rowa  ♦  Root Resin  ♦  Rowa Fruit  ♦  Ruin Fragment  ♦  Sacramental Bud  ♦  Sanctuary Stone  ♦  Silver Firefly  ♦  Silver Tear Husk  ♦  Sliver of Meat  ♦  Slumbering Egg  ♦  Stormhawk Feather  ♦  String  ♦  Strip of White Flesh  ♦  Thin Beast Bones  ♦  Toxic Mushroom  ♦  Trina's Lily  ♦  Turtle Neck Meat  ♦  Volcanic Stone  ♦  Yellow Ember

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    • Anonymous

      I’d rather use shriek of Milo’s or Greyoll’s roar to apply a power shred buff than farm these for the perfume.

      • Anonymous

        Holy sht. What's with the drop rate of a none respawning material of the weakest spraymist. Golem Greatarrows having sht drop rate is slightly acceptable for how powerful it is. This one doesn't have any reason to be.

        • Anonymous

          I really would like the chart to be corrected as it refers to a "Giant Ant Queen" but this is an unlisted enemy in the giant ant page. There seem to be 2 different takes on the name of the creature that drops the rock for a 5% chance.

          • Anonymous

            I think the easiest way I have found is to go to Great Waterfall Crest in Deeproot, go south and have something with a big aoe to nuke the two big head ants and recall to the sog and repeat. I have been using Burn, O Flame! on the character that needs them but I feel like mogwyn spear with an arcane build would do the trick too (you can always burn two larval tears to get 99 for max discovery and damage scaling for the moment). I suggest that you have at least 200 discovery. I end up with 245 with my setup using fowl feet. The farm is kind of tedious but you can definitely avert your attention and do other things riding there and on load screens. If you want to make the most of the fowl feet, you can just ride the horse back so you get more uses but I think its worth it to just burn them for one chance at scoring and then warping.

            • Anonymous

              This game is really terrified of letting us have enough materials to consistently craft the perfume items

              • Anonymous

                Don't know this is a bug but doesn't 4x to craft acid spraymist a bit much for a resource that doesn't seem to respawn.

                • Unfortunately these do not seem farmable from ants realistically. All kills were done with 274 item discovery, 99 arcane and the talisman.

                  Ainsel River Well Depths grace, 198 kills, 2 formic rocks, 1.01% drop rate
                  Deeproot depths grace the flying ants specifically, 168 kills, 2 formic rocks, 1.19% drop rate
                  366 total kills, 4 formic rocks, 1.09% drop rate

                  I gave up after it being so bad and one of those rocks got stuck on the wall from the ants dropping down, wouldn't recommend wasting your time on this one sadly.

                  • Anonymous

                    These can drop very rarely from giant ants in the Ainsel River area. Good since the Formic Rock in the world doesn't seem to respawn, much like Trina Lillie's and Aeonian Butterflies. Emphasis on low drop rate. With 50 base Arcane, +8 Arc Mimic Helm, +50 Discovery Silver Foot (no Silver Scarab for +75 Discovery yet) a dozen runs of Dragonfire upon the 5 wall hanging ants visible from the first Ainsel River Grace yielded all of 1 Formic Rock.

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