text: wieght vs volume\nfind out what the stones should weigh per unit of volume. measure their volume by dropping them in a graduated cylinder and recording the water level before you drop it in and after.\nthe difference is your volume.\nwiegh the stone and see how closley it resembles the wieght it should.\n\nnot going to be exact, because of natural flaws in stone making them a bit off with the weight, but it will give you a guess of whether they could be real or not.