Twin kyber crystals were two kyber crystals that were connected through the Force. Jedi Wayseeker Gella Nattai owned two lightsabers with twin kyber crystals. When Axel Greylark stole one of the lightsabers, Gella was able to sense its crystal through the other crystal's connection with it and find Axel on Dalna.
The concept of twin kyber crystals was first introduced in the 2023 The High Republic novel Cataclysm with the crystals of Gella Nattai's lightsabers, which were first mentioned in The High Republic: Convergence.
The concept of twin kyber crystals was first introduced in the 2023 The High Republic novel Cataclysm with the crystals of Gella Nattai's lightsabers, which were first mentioned in The High Republic: Convergence.