Got a magnet? If it sticks to a magnet, you've got your final conclusive proof it's a fake. Got a digital scale? Most fakes weigh less than the normal 26.7 grams. My Chinese fakes that look like yours only weigh 19.6 grams but it's hard to tell manually if you don't have a genuine to compare at the same time.
Right now I have 6 (2 peace), they all sound the same, aside from this one that is of higher pitch. It also weighs less than the normal dollar, slightly over 25 grams (i dont have a digital scale), however, it is not magnetic.