Help With Breeding my Pullet...

We have a 6-7 month old girl named Raven that my wife and I got in trade for a rooster we had to get rid of. We got her about 4 months ago from a local feed store, she was sick and my wife felt the urge to nurse her back to health. Im realy glad she did, because Raven has a great personality. Well we are trying to figure out what she is. For all I know she is a "mutt" chicken, but I am curious. She has a black color to her from a distance, but when you look closely she has an iridesnce that makes the feathers go purple, green or blue in the light. Here are a few crude cell phne pics, thanks for any help. Also feel free to ask any questions as necessary.