just avoid them until you get bronze gear, then they aren't even an issue. Me, I dig a hole nearby and get all 3 in it. stops spawning at that location all together. why not just destroy it? They make good area markers because the light from them renders from pretty far away. also once you have the spawning stopped there then you can turn it into a greydwarf farm. but that's a bit down the road for you at this point