Chthonian Preservation

The biomass readings on … are the petrified remains of a pod of Tiyanki. Likely present in the gas giant during a critical point in its atmospheric dissipation, their bodies were encased in molten metal that has since solidified. While a small amount of biological matter remains inside, prolonged exposure to the chthonian-level stellar radiation has converted the majority of their corpses into a unique bio-metallic alloy. … believes that with closer study of these rare fossils, we will be able to discover new avenues of alloy production from biological sources.

The command below will trigger the "Chthonian Preservation" event in Stellaris:

When this event fires, you can choose between the following option:

• Fascinating.
  • Society: +None to None
  • Exotic Gases: +None to None
  • Add deposit: +2
  • Add deposit: +4
  • Start special project: Chthonian Petrification

Stellaris events fire in chains — one event leads to the next. Here is how Chthonian Preservation (extreme_frontiers.430) connects.