Ten heart pebbles is equivalent to a lb. When it comes to mass, ten pebbles equal 1 lb. If you have a total of ten affection pebbles, these would weigh approximately 1 lb. A total of ten lovely love-shaped rockets make up 1 pound in weight. If you have a collection of ten pebbles made in the shape of hearts, they will amount to around one lb. 10 affection pebbles is equal to to approximately 1 pound.