Stone layers

In Underdog, there are layers of stone that generate depend on biomes.

• Igneous Extrusive:
  Andesite, Basalt

• Igneous Intrusive:
  Diorite, Granite

• Metamorphic:
  Quartzite, Marble, Slate

• Sedimentary:
  Dolomite, Limestone

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Between 50 - 70 blocks, there is always a Composite Rocks layer. That is composed mainly of Quartzite. This layer is also the most unstable and can contain boulders. It generates is all the biomes.

After the Composite Rocks layer, there are always two other stone layers under and above. That can vary depending on biomes.

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