Blue Dragon Scales

Blue Dragon Scales can be used by Cespenar to forge Blue Dragon Plate and asks 5,000 gold to do it. This item appears in Baldur's Gate II: Throne of Bhaal, it can be gained when Abazigal is killed.

In-game description
"The scales salvaged from the blue dragon crackle with static energy when touched. Legend has it they can be magically forged into powerful armor."