Corundum was a mineral that could notably be found on the planet of Jakku; the native steelpeckers, a species of metal-eating birds, stored corundum and other minerals in their gizzards to grind food.
- Rey's Survival Guide (First mentioned, simultaneous with Star Wars: The Force Awakens: The Visual Dictionary)
- Star Wars: The Force Awakens: The Visual Dictionary (First mentioned, simultaneous with Rey's Survival Guide)
- Corundum on Wikipedia
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