Hi,

charli,its looks like little brown pebbles,you cant actually eat them but you boil them and you use the water in food or drink it as tea,then you discard the actual stones,they are used more as a infusion.i dont know where you buy them from,but i usually get them at a middle eastern grocer,if you buy it from there they might be written in arabic and it will say Helba ,because thats what its called in arabic.Maybe you can get it at a health food shop as well.