Adamantine Scale Mail is a Rare Medium Armour found in Baldur's Gate 3.
About the Adamantine Scale Mail
This armor prevents attackers from landing critical hits on the wearer. Additionally, all incoming damage is reduced by 1.
Where To Find The Adamantine Scale Mail
The 
Adamantine Scale Mail is one of several items that can be forged at the Adamantine Forge, located in the Underdark, and is tied to the quest "The Adamantine Forge". To obtain the Adamantine Shield from the forge, you will first need to gather the Scale Mail Mould, 
Mithral Ore and defeat Grym. Once all of these conditions have been met, you can then forge the Adamantine Scale Mail and equip it for use.
The Adamantine Forge Location
Below is the location where you can forge the Adamantine Shield.
