I decided to get a detector for the purpose of hunting my new mining claim for gold here in CA, as well as hunting for coins on my family's farm that I live on here that dates back to the late 1800s. I decided on the X-Terra 70. This is my first detector, I have never even used one before. I Bought the detector this afternoon, took it home and went right at it. The area I was hunting is a old home site where there was a house from the teens to the thirties. There has been nothing else in the area since then. There is a old root cellar in the side of the hill that the house was on that is filled up with their garbage, and there is all sorts of old trash(a lot of bottles) buried around the root cellar. There was a bunch of what seemed to be iron in the area that was all reading from -8 to -2. I dug everything that had a strong reading above 0. I found what looks like an old large aluminum can of some sort that is all bashed up, a shotgun shell, a small ammo cartridge casing of some kind, some wire that looks like aluminum or copper(it's so dirty I cant tell), a small piece of copper, a old bottle, and this large rusty heavy chunk of what looks like Iron to me. It gives a reading on the detector of around 30-34 which kinda baffled me. All the other Iron targets I ran over seemed to have readings below zero. Any thoughts on this? Also- Is there any way for me to tell the non-ferrous trash that I have found from coins? This is brand new to me so any tips are appreciated.