If you go Artificing, you MUST go archaeology. That is the gathering skill to support it. Now, treasure hunting is the other associated skill, but it only provides mats for blue crafted items. If you don't care about making blues, you can skip treasure hunting and take up slicing, the the idea to switch back when you hit 50. Edit: Also, do not spend any money on the mission part of Archaeology. It is a huge sink and you can enough crystals if you just grab every node you see. You will need to dump money in treasure hunting but it isn't nearly as expensive.