Adamantine Mould are special items that you can use with Mithril Ore to create Adamantine items in Baldur’s Gate 3. These moulds can only be found and used in the Adamantine Forge, which is found near the Grymforge, accessed through the Underdark.
To use the Adamantine Forge and create adamantine items, you must pick up moulds scattered throughout the area. These Moulds let you craft the item they are named after and are a major part of the forging process. But knowing where to find these moulds is a bit tricky.
Adamantine Forge Location
The Adamantine Forge can be found in the Grymforge area within the Underdark. Once you are at the Underdark, make your way to the extreme southwestern region of the area, where you will find a lake with a dock. Use the boat to get to the other side of the lake, and you will find yourself in the Grymforge.
Once in the Grymforge, follow the map above and reach the area marked “The Ancient Forge”. The path is fairly straightforward. At the end of it, you will find a bunch of dwarves trying to clear some rubble.
Clear the rubble for them and head inside. Head up two flights of stairs, and you will come across a bridge. Head straight until you come across a dilapidated tower with a ledge. You need to cross it. Use the “Fly” spell to make it to the other side. Kill all the enemies present in the area. Right in the middle of the area, there is a circular motif on the floor. The set of double doors directly in front of it leads to the Adamantine Forge.
How to Find All Adamantine Forge Moulds
The moulds are scattered close to the forge in Baldur’s Gate 3. So, finding them is not very hard. Keep your eyes open and observe the area keenly to ensure you do not miss them. There are six moulds including one for a shield, a longsword, a scimitar, a splint, a mace, and a scale mail armor.
Remember that you can’t use the moulds without a Mithril Ore. There are only 2 Mithril Ore available per playthrough inside the Grymforge, making it a tough choice for the players.
Shield Mould
To find the Shield Mould make your way to the first floor of the Grymforge. You will see a set of double doors right across from the bridge. Pick the locks on the door using thieves’ tools and head inside. If you have Shadowheart in your party, you can use her to roll above 12 and unlock the doors without any lockpicks.
Go up the two flights of stairs until you reach the end of the room. The Shield Mould can be found on a skeleton resting on the last bit of stairs (X: -556, Y: 408). You can craft Adamantine Shield with the help of this mould and one Mithril Ore.
Longsword Mould
To find the longsword mould, head back the way you came and use the level 3 spell “Fly” to get on the bridge directly in front of you. Alternatively, you can also use the level 2 spell Misty Step to teleport on top of it. The longsword mould is on the bridge (X: -628, Y: 409) inside the Abandoned Refuge area.
You can craft the best dual-handed longsword, Adamantine Longsword, at the forge with this mould and Mithril Ore.
Scimitar Mould
The Scimitar Mould can also be found nearby. Simply follow the bridge until you reach the last slope. Teleport or fly to the platform on the left side and do it again to reach the building further left. Head up the stairs and over the fiery chasm. The Mould will be on a skeleton next to the control panel (X: -603, Y: 320).
Use this mould and one Mithril Ore at the Adamantine Forge to craft Adamantine Scimitar.
Splint Mould
To the left of you is another building. Use the Fly or teleport spell to reach the area left of you, right over the chasm. The splint Mould is resting just above a ledge (X: -595, Y: 309) near a dead body. It can be used to craft Adamantine Splint Armour (heavy) with a Mithril Ore.
Mace Mould
To find the Mace Mould, continue upwards until you come upon an open area. Towards the very edge of the area, there is a table on which you will find the Mace Mould (X: -611, Y: 284). If you are keen-eyed, you will also notice that this is an alternate path to the Adamantine Forge, as the doors leading to it lie to the left side of the area.
It is used to craft Adamantine Mace with the help of Mithril Ore.
Scale Mail Mould
Finally, the Scale Mail Mould in Baldur’s Gate 3 can be found simply a few steps ahead of the table where you picked up the Mace Mould. Head towards your left, and it will be on the ground (X: -615, Y: 267). However, you need to fight several enemies, including Animated Armor.
It is used to craft one of the best medium Armor in BG3, Adamantine Scale Mail.
