A kyber crystal, sometimes called a lightsaber crystal, are rare, Force-attuned crystals contained within every lightsaber. The kyber crystal helps focus energy in order to create the lightsaber’s characteristic plasma blade. A kyber crystal starts colorless and is inherently attuned to the light side of the Force. The kyber crystal changes colors, most commonly to blue or green (occasionally other colors), after becoming attuned to a Jedi. Alternatively, a dark side user may forcibly bend the crystal to their will, consequently “bleeding” the crystal to the dark side’s distinctive shade of red.
Although a kyber crystal most commonly becomes blue, green or red, the crystal may also turn into less common colors including: purple (e.g. Mace Windu’s lightsaber), white (e.g. Ahsoka Tan’s lightsaber), black (e.g. Darksaber), or yellow (e.g. Jedi Temple Guard lightsabers). Jyn Erso also wore a clear kyber crystal pendant as a necklace in Star Wars: Rogue One.
A kyber crystal chamber, a section typically located inside of the hilt that contains a kyber crystal, is a popular custom lightsaber feature. Custom kyber crystals are often made from quartz. Savi & Son’s Salvage, a build your own lightsaber shop opening at Galaxy’s Edge at Disneyland and Disney World in 2019, will offer officially licensed lightsabers with kyber crystals inside.
Find lightsaber crystal chambers on Etsy [AFFILIATE LINK]
Find kyber crystal necklaces on Etsy [AFFILIATE LINK]
COVER IMAGE: crystal chamber blade plug by jarret921 (eBay seller)