Amplify Stone Fragment (Unique) (Bound)
Not from open-world monstersThe game files list it from Krao Cave, Urugugu Canyon and Draupnir and 4 more places. Seen one drop somewhere else? The tracker logs it.
Other places Amplify Stone Fragment (Unique) (Bound) comes from
Bosses, field bosses, named elites, dungeons, raids and events. These aren't open-world farming: Field boss Dungeon
More special materials
Every special materials in Aion 2
Questions
Where does Amplify Stone Fragment (Unique) (Bound) drop in Aion 2?
The game files don't list Amplify Stone Fragment (Unique) (Bound) on any regular open-world monster. They list it from Krao Cave, Urugugu Canyon and Draupnir and 4 more places.
Can you farm Amplify Stone Fragment (Unique) (Bound) in the open world?
Not from regular monsters: the game files list none. If players log one with the tracker, this page will show it.