A type of crystal found in the Crypt of Mages in Loc Muinne. They act as a puzzle and require to be hit with Aards and Ignis to activate them to access the next room. When you first enter the room you will be greeted by several spectral enemies. When you complete the puzzle, a door in the room will open. Going through that door, and then another door, you will fine a statue with a sword at the base of it. Upon taking the sword, a mage guard will appear and attack you. When he goes up on the ledge, he will summon wraiths to attack you, while attacking from afar.