Stone layers

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

• Igneous Extrusive:
  Andesite, Basalt

• Igneous Intrusive:
  Diorite, Granite

• Metamorphic:
  Quartzite, Marble, Slate

• Sedimentary:
  Dolomite, Limestone

Stone layers generate in the following way:
◎ ▇▇▇▇▇
◎ ▇▇▇▇▇
◉ ▇▇▇▇▇
◎ ▇▇▇▇▇
◎ ▇▇▇▇▇

---

◉ 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.

---