Argon

Argon is an atmospheric resource in Astroneer. It is a blue gas that is stored in a spherical canister. A blue ring on top indicates how much gas is left in the canister.

Source
Argon can be found on the following planets using the :
 * : 50 ppu
 * : 100 ppu

Uses
Argon is used to craft the following items:

Trivia
Argon was found on Barren, now known as Desolo at 50ppu until Patch 1.0. It was likely removed due to Desolo not canonically having any atmosphere ( even though when you leave or land on Desolo you can see a yellow haze).

Argon Argón Аргон