When set in a lightsaber's crystal chamber, jenruax made the blade more agile and thus, more efficient at deflecting blasterfire.
- Star Wars: Knights of the Old Republic (First appearance)
- Star Wars: Knights of the Old Republic II: The Sith Lords
- Knights of the Old Republic II: The Sith Lords: Prima Official Game Guide (as Jenraux crystal)
- Knights of the Old Republic Campaign Guide
- The Complete Star Wars Encyclopedia
- Jedi Academy Training Manual
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