About 1,000 Ly’s from Sol in the same system as the Alien Ruins is a small planet orbiting a ringed gas giant with carbon dioxide geysers. It’s a large open flat space with dark grey smokey looking stacks coming up out of the ground.
There are lots of materials here. I picked Arsenic, Niobium, Tellurium, Zinc among the usual materials like nickel, phosphorous and sulphur.