Rune of Clangeddin

Rune of Clangeddin is a component needed to upgrade the Runehammer. This item appears in Baldur's Gate II: Throne of Bhaal and Baldur's Gate II: Enhanced Edition. It's not known where this item can be found.

In-game description
"The dwarven clan of Clangeddin were reknowned for their enchanted forges, and the magical darksteel hammers which came from them. There is a powerful aura of magic on this rune etched stone, though by itself the stone has no obvious use."