Gas Giant Dead Core

Gas Giant Dead Core is a bottom layer of some Gas Giants. Similarly to Moon Core Layer, it consists of non-mineable Dead Core blocks (there is nothing below them). There is an ocean of either Lava or Metallic Hydrogen.

Only 1/3 of the Gas Giants will have this. Others have either Gas Giant Core (easily minable blocks with a lot of ore) or Gas Giant Core Ocean (just another layer of gas).