Black tourmaline core

Black tourmaline core
Released							26 October 2017 (Update)
Members							Yes
Quest item							No
League region							Morytania✓
Properties
Tradeable							Yes
Equipable							No
Stackable							No
Noteable							Yes
Options							Inspect, Drop
Examine							The blackened heart of the Grotesque Guardians.
Values
Value							41,500 coins
High alch							24,900 coins
Low alch							16,600 coins
Weight							1 kg
Grand Exchange
Exchange							892,575 coins (info)
Buy limit							5
Daily volume							89
View real-time prices
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Advanced data
Item ID							21730
Link							MOID

The black tourmaline core is an item dropped by the Grotesque Guardians that can be found on the Slayer Tower's rooftop. It can be used to upgrade the Bandos boots to create guardian boots, after which the core is used up. This process is irreversible.

In the book The living statues, it's revealed that the core was used by the Bandosian general Snaarldor to animate the statues of the Slayer Tower, giving life to the Grotesque Guardians as well as all the gargoyles in the tower. However, the gargoyles turned against the Bandosians after being ordered to attack Zamorakian forces. This was due to the Slayer Tower being filled with Zamorakian magic, as the creator of the tower, Viggora, was a Zamorakian.

Item		Members	Skills	XP	Materials
	Guardian boots		None	None	1 × Bandos boots 1 × Black tourmaline core

Source	Level	Quantity	Rarity	League region
Grotesque Guardians		1	2 × 1/1,000