Ten heart pebbles equals a lb.
Regarding mass, 10 stones are equivalent to 1 lb.
In case you possess 10 heart pebbles, these would measure about 1 pound.
10 beautiful affectionate pebbles compose a pound in weight.
If you have multiple 10 stones made in the shape of hearts, it will amount to about one lb.
The weight of heart rockets totals to approximately a pound.