The Durindfire gem was a precious crystal found on the planet Tatooine.
Few Durindfires ever left the planet, though some were bought and sold by the Galactic Empire to help finance the Death Star project. The Alliance to Restore the Republic was able to pinpoint the Empire's various development sites by tracking the movement of these gems, and additionally used this information to uncover the origins of the TIE Phantom Project.
A Durindfire gem was key in adding a distinctive silver sheen to any lightsaber blade. This stone was traditionally used by the Jedi of the Halcyon/Horn family.
Jawas used Durindfires to make lenses to protect their sensitive rodent-like eyesight from the bright sunlight. Most of other inhabitants of Tatooine, though, didn't know the value of these gems, found in the desert sands, and thought them to be worthless.
The novella Side Trip, in which the Durindfire first appeared, uses the alternate spelling "Durind Firegem".
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