Lightsaber crystal

Lightsaber crystals or jewels, also known as focusing crystals or kyber crystals, were a variety of crystals, gems, stones, or other objects that were used as the energy source of a lightsaber.

At the heart of every lightsaber was a single crystal that resonated to produce the efficient, powerful blade. While the most common crystals used in the process were from the Adega system, Ilum and Dantooine (in the so-called Crystal Cave), Jedi and Sith used a variety of crystals to produce various colors, effects and unique abilities. Some crystals could even enhance the Force skills of a particular user. Other gems, such as colored crystals or diamonds, were used exclusively for prismatic effects. However, not all lightsaber focusing crystals were actually 'crystals'. Plenty of Jedi or Sith used a different material or substance in place of a crystal, such as physical remains, shards of glass and even special micro machinery.

During the Dark Wars, many lightsabers were created using Kunda stones, a natural geologic formation from the planet Kadril, in place of crystals. These stones boasted numerous practical applications in medicine and communications; however, when added to other focusing crystals, they produced a broader beam.

Text and facts from the “Lightsaber crystal/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.