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Rubat

From Wookieepedia, the Star Wars wiki.

Rubat was a type of crystal used in the construction of lightsabers, also known as lightsaber crystals. The planet Phemis was the only known source of rubat.

When placed in a lightsaber's crystal chamber, rubat sharpened the appearance and definition of the blade, allowing its wielder to easily track the blade and strike opponents properly. The crystal would also help its wielder attack faster.

[edit] Behind The Scenes

This crystal is used in Star Wars: The Force Unleashed and has no lightsaber effect.

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