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Mass Effect 1 Legendary Edition

UNC: Valuable Materials

Ben Chard

This Assignment can be accepted at any point after you gain access to the Galaxy Map for the first time. It takes place across the Galaxy and involves the collection of items.

The gas found on the planet Syba.

Where to find Valuable Materials

Once you venture out into the Galaxy, you’ll be able to either explore Uncharted Planets with the Mako or Survey them directly from space. While on the planets themselves, you may come across anomalies on the map which, when examined, will begin the decryption mini-game.

Alternatively, you can survey some planets directly and you’ll receive the item without having to explore with the Mako. Once you find your first Valuable Material, the Assignment will get added to your Journal, at which point you’ll need to find 20 Light Metals, 20 Heavy Metals, 20 Rare Earths and 6 Gases to complete the Assignment. This is only a fraction of what you can find in the Galaxy and finding each one will also award you XP and Credits, of which both scales based on your current level.

Light Metals

Heavy Metals

Rare Earths


Cluster System Planet Method
Argos Rho Hydra Syba Survey
Artemis Tau Macedon Fargeluse Survey
Artemis Tau Athens Proteus Survey
Artemis Tau Knossos Archanes Survey
Artemis Tau Sparta Ontamalca Survey
Artemis Tau Athens Circe Survey
Hades Gamma Antaeus Edmos Survey
Horse Head Nebula Strenuus Antitarra Survey
Kepler Verge Newton Juncro Survey
Voyager Amazon Tremar Survey


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Guide Information

  • Publisher
    Electronic Arts
  • Platforms
    PC, PS4, XB One
  • Genre
    Action RPG, Third-person shooter
  • Guide Release
    14 May 2021
  • Last Updated
    17 August 2021
    Version History
  • Guide Author

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The guide for Mass Effect 1 Legendary Edition features all there is to see and do including a walkthrough containing coverage of all Assignments, detailed breakdown of all the important choices, class builds and much more!

  • Full coverage of all the Main Missions.
  • Every Assignment covered.
  • In-depth look at the major choices and consequences of each.
  • Full details on how to romance Ashley, Kaiden or Liara
  • Class builds to get the most out of your chosen class.
  • Details on every Talent.
  • How to spec your squad.
  • Breakdown of all Paragon and Renegade opportunities.
  • Trophy/Achievement guide.

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