This is a very valuable find for anybody hoping to create efficient Geothermal Generators, for the lava inside of them is nearly endless. They are also valuable sources of basalt and basalt cobblestone, which can only be found directly adjacent to volcanoes (vertically or horizontally). This can also be used to create basalt brick, which is created like stone brick by smelting the basalt cobblestone into basalt and making it like you would stone to stone brick.
Volcanoes can have a bunch of obsidian on the bottom.
- Volcanoes will sometimes explode near the top, damaging any structures built on top (need citation)
- Volcanoes cause rumbling sound effects within range.