The piece arrived early, but it was a professionally cut rock that looked more like glass than a crystal.  I wish it had been a nateral rock.  It is literally an inch long.  Suppose it would be good for people that like the idea of a hanging rock around their neck that looks all fancy, but for those who want the true power of and uncut crystal...this is not it.  I ended up going out into my neighborhood and found a beautiful rock that is nearly 2 inches and completely raw.