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This article is about Crystalline Sulfur. You may be looking for Cave Sulfur.
This article is about Crystalline Sulfur in Subnautica. To see this subject's article on the Subnautica: Below Zero Wiki, click here.

Crystalline Sulfur is a raw material that functions as an oxidant and reducing agent. It can be found in the Inactive Lava Zone, Lava Lakes, their corridors close to lava rivers and in the Lost River under the green brine.

Uses in Crafting

Cyclops Upgrade Fabricator

AerogelAerogelCrystalline SulfurCrystalline SulfurArrow-right (1)Cyclops Upgrade ConsoleArrow-right (1)Cyclops Fire Suppression System



Vehicle Modification Station

Nickel OreNickel OreCrystalline SulfurCrystalline SulfurCrystalline SulfurTitanium×5LithiumArrow-right (1)Vehicle Upgrade ConsoleArrow-right (1)Prawn Suit Jump Jet Upgrade


Spoiler alert: The following section contains story related material.


Neptune Fuel Reserve

Plasteel IngotCrystalline Sulfur×4Kyanite×4Ion Power CellIon Power CellArrow-right (1)Rocket BaseArrow-right (1)Neptune Escape Rocket Stage 2



Data Bank Entry

Sulfur is a highly reactive, non-metallic element, usually found in abundance underground. Common applications include production of acidic compounds, and combustibles.

Assessment: Essential for advanced fabrication

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