Only one crystal tree is active at a time, and will switch location randomly every two hours. When they are active, the crystals at the base are much larger. Right-clicking and choosing to "Look at" an active tree will prompt the message, "This tree points to the heavens." Right-clicking to "Look at" an inactive tree prompts a message that says "The tree leans slightly towards the [direction of the active tree].", allowing players to follow in the direction shown to that particular active tree. The crystal tree's re-spawn time is the same on every world but the active location differs, which gives you the option to world-hop instead of relocating to the next tree.