This article is about the Uraninite Crystal in Subnautica. To see this subject's article on the Below Zero Wiki, click here.

Uraninite Crystals are a raw material used to create a single component, the Reactor Rod. They can be found both in raw form on the seabed and as a large resource deposit.

Uses in Crafting


Uraninite CrystalUraninite CrystalUraninite CrystalLeadTitaniumGlassArrow-right (1)FabricatorArrow-right (1)Reactor Rod

Data Bank Entry

Uraninite is a naturally occurring uranium oxide. Highly radioactive and unstable, its primary use is in the production of uranium reactor rods for nuclear generators.

Assessment: Applications in nuclear power



  • Uraninite Crystals were formerly used to craft Uranium. They were removed in the Prison Update of 2017.
  • When picked up, the player's geiger counter will go off.
  • The chemical formula for Uranitite Crystals (U3O8) implies that they are made of triuranium octoxide, a popular form of yellowcake.