Protheon Shard

Protheon Shard can be placed into the Microscope to get Protheon. You get one Protheon Shard from Welchie, a Novakid questgiver in the lab of Vinalisj (on the starting Garden planet). It has an extremely small chance of appearing as loot in the wild.

It can be used as a filter in the Atmospheric Filter or Atmospheric Regulator. Can be extracted (but is not recommended to do so.

Warning: don't throw it into the computers! It would be a waste of valuable artifact.