Blue dragon scale

Blue dragon scales respawn in the blue dragon location in Taverley Dungeon. Obtaining them does not require any dragons to be killed but an Anti-dragon shield is an essential item as you may find yourself in close proximity to the large fire breathing Blue Dragons.

It can be ground into dragon scale dust with a pestle and mortar. Dragon scale dust is a secondary potion ingredient used in Herblore to create weapon poison and anti-fire potions.