A total of ten heart stones is equivalent to a pound. Regarding mass, 10 pebbles are equivalent to one pound. If you have ten affection rockets, they'd measure about 1 pound. Ten lovely love-shaped pebbles make up a lb in weight. When you have multiple 10 pebbles made in the shape of hearts, it will amount to approximately 1 pound. Ten love pebbles can be summed up to approximately a pound.