Covered in stone, gravel, and strips of calcite.Tends to generate in any peak surrounded by warm biomes such as jungles and savannas, to avoid temperature clashes.Copper ore veins mixed with granite and blocks of raw copper generate above Y=0.Iron ore veins mixed with tuff and blocks of raw iron generate below Y=0.Terrain from new chunks now blend with existing terrain from old chunks.Any player-made structures in these chunks are either intact, buried, or deteriorated.