Astronium

is a resource in Astroneer. It can be found on the surface of Radiated Planets and deep beyond the underground and cavern level of every planet.

Astronium isn't used in any crafting nor is it tradeable. Once you find an Astronium deposit, You can gather some with your Terrain Tool, however a Drill Head is required to mine out the entire deposit

Known Issues

 * In version 158, Astronium, alongside Lithium and Titanium were able to be mined without the use of drill, this was however unintentional.

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Astronium