Kyber memory crystal The Kyber memory crystal , or simply the Kyber crystal , was a memory crystal that contained a list of all known Force - sensitive children in the galaxy . As it was considered to hold the future of the Jedi Order , it was highly valuable to both the Jedi and Sith . The information contained in the crystal could only be accessed when placed in a Holocron which , in turn , could only be opened with the Force . Characteristics . The Kyber memory crystal was a small , blue , diamond - shaped crystal which held the identities of every known Force - sensitive child in the galaxy . The crystal was designed in such a way that its data could only be accessed if it were to be installed in a Jedi holocron . In turn , the holocron could only be opened by a Jedi ' s use of the Force . The two components were kept separate ; the holocron was stored within the Holocron Chamber of the well - protected Jedi Temple on Coruscant , while the crystal itself remained in the care of a Rodian Jedi Master named Bolla Ropal . History . During the Clone Wars , the crystal was kept and protected by the Rodian Jedi Master Bolla Ropal . Darth Sidious hired the Duros bounty hunter Cad Bane to infiltrate the Jedi Temple on Coruscant and steal a holocron necessary to accessing the information stored on the Kyber crystal . While Ropal was on Devaron , Duros bounty hunter Cad Bane kidnapped him and stole the memory crystal . Later , during a mission to recover the holocron Bane had stolen , Jedi Knight Anakin Skywalker was coerced into opening the holocron to save his Padawan ' s life . Bane then inserted the Kyber crystal into the holocron , making it possible for his client to access the information stored within . The crystal was believed destroyed , along with Bane , when the " Munificent " - class frigate they were on exploded . Bane survived , however , disguising himself as a clone trooper . Under Sidious ' instruction , Bane kidnapped several of the children listed in the memory crystal . However , he was captured ; after Masters Mace Windu , Obi - Wan Kenobi , and Jedi Skywalker coerced Bane with the Force he led the Jedi to the holocron with the crystal inside ( which was on a booby - trapped space station ) and escaped during the confusion . The kidnapped children were located on Mustafar based on his fighter logs , and rescued from surgical droid s by Anakin Skywalker and Ahsoka Tano . It was said that Bane never copied the list before it was recovered by the Order . Behind the scenes . It is possible that this was a term for a more general category of memory crystals . While the name suggests a connection to kyber crystal s , no such connection has been established . Several items have been referred to with variations of the name " Kyber " or " Kyber crystal " , including the Kaiburr crystal in the 1978 novel " Splinter of the Mind ' s Eye " , and the kyber crystal s used in the Death Star superlaser s and Jedi lightsaber s in canon . The Kyber crystal was first mentioned in early drafts of as the " Kyber crystal . " It was a Force artifact sought by both the Jedi and the Sith . The poison dart Jango Fett used to assassinate Zam Wesell was originally going to be identified as a Kamino kyber dart . This was again changed in the finished film to be a saber - dart . During " Cargo of Doom , " Cad Bane states that the holocron contains information he ' s been paid to collect . This is inaccurate , as it is later established that the Kyber crystal contains the actual information and the holocron is only the means of accessing the data . It is unclear if this was an oversight by the script writers or an intentional element .