Minecraft wiki entry for Compass, associated text: The compass can be used on a lodestone, after which it is named lodestone compass by default and points to that lodestone as long as the compass is in the same dimension as the lodestone, but if the compass is taken to a different dimension, it spins randomly, as a normal compass would in the Nether or the End. If the lodestone is destroyed, it also spins randomly, even if the lodestone is replaced afterward. However, if a lodestone compass is placed in storage, the lodestone can be broken and replaced without the compass losing the attunement, as long as the compass remains in storage while the lodestone is missing.