This is used to unlock the Crystal chest, which contains a dragonstone, and other items.īefore the introduction of the Grand Exchange, both halves of the crystal key sold for the same price, at around 20,000-30,000 coins each. Doing so will grant you 10 Crafting experience. The loop half of a key is used with a tooth half of a key to make a crystal key. The loop half of key may be looted from magpie implings as well as its other half, the tooth half of a key. It was also a reward from various random events, and can currently be found in the chest in Taverley, the Barrows chest, the gnome restaurant, an evil tree reward, from cremating Vyrewatch, from Kingdom Management and from caskets. The loop half of a key is an item dropped by numerous NPCs.