A total of ten heart pebbles is equivalent to 1 weight unit. In terms of mass, a total of ten stones equal one lb. Should you own 10 affection stones, these would weigh around one lb. 10 lovely heart-shaped stones form a lb in weight. When you have multiple 10 pebbles made in the shape of hearts, they will amount to around 1 pound. 10 love rockets totals to approximately a lb.