Sulfur, or sulphur, was a yellow element found in natural settings. It could be rafted in molten form on the planet of Oko E. It was also found in pools on Lok and in geyser fields on Baroonda. The air of Charbi, Vulpter smelled of sulfur. As a solid it forms as yellow blocks.
- Episode I Adventures 5: The Ghostling Children (Mentioned only)
- Star Wars: Episode I Racer
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- Star Wars: The Clone Wars – "The Citadel"
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- Sulfur on Wikipedia