Talk:The Crimson/@comment-4706201-20140105045516/@comment-11780490-20140112134418

no theres a fifty percent spawn rate for every type of ore when you spawn a world. copper you know has a 50% chance of being tin, Iron has a 50% chance of being lead, and so on. once the world is created you'll have those ores in your world and the other ores will not spawn naturally in that world.