The crystal of memories was an item obtained in the Trailblazer League upon unlocking the Last Recall relic. As the relic gives the player the item, it must be unlocked in a bank.
The crystal allows players to teleport themselves back to the location where their most recent teleport occurred, providing that the player possessed the crystal in their inventory upon teleporting; a chatbox message will notify players if their teleport was successfully stored.
However, the crystal will not remember the player's teleport location if they teleported from an instance or special area, such as quest areas and minigames. In addition, players cannot use the crystal if they have a pet following them, nor will it allow players to return to Entrana.
The crystal of memories is destroyed upon death. If players lose the crystal, they can reclaim it from the Leagues Tutor in Lumbridge.
Note: The crystal does not remember the location from its own teleport.
The Crystal of memories teleport animation.