Refined materials

Refined materials are the currency of Astroflux. There are four types:

Steel
Steel is the basic material, and almost any junk can be recycled to make it. It has many uses, like upgrading weapons, unlocking systems, and ship upgrades.

Hydrogen Crystals
Hydrogen Crystals are used for level four upgrades on ships and can be used to buy certain warp paths to various systems. They are made by recycling hydrogen spills and completing certain missions.

Iridium
Iridium is made by recycling certain junk, completing missions, and exploring systems. Iridium will unlock certain systems and level 5 upgrades.

Plasma Fluids
Plasma Fluids are used for opening certain systems and level 6 upgrades. You get these by recycling junk, completing missions, and exploring systems.