Blurite ore

Blurite ore is an ore used in the hilt of the blurite sword in The Knight's Sword quest and in crossbows and bolts. It can be mined by a player with level 10 Mining.

Rocks containing blurite are found only in the Ice Caves, located south of Port Sarim on the tip of the Asgarnian peninsula. The Ice Caves are the toughest dungeon mine in the free-to-play world, guarded by Ice warriors and Ice giants, both of which can hit up to 7. Although blurite is minable by non-members, you need to be a member to smith it. Thus it is worthless to non-members except for doing The Knight's Sword. Low leveled players should take caution before entering the caves. The Wise old man will offer to buy this ore for 2gp each after completion of The Knight's Sword.

At Smithing level 8, blurite ore can be smelted into a blurite bar for smithing into blurite bolts or blurite crossbow limbs for use in a blurite crossbow. You must be a member to do this.