Ten heart stones amounts to a weight unit.
When it comes to weight, 10 pebbles equal 1 pound.
In case you possess ten heart rockets, they'd weigh around one pound.
A total of ten charming love-shaped pebbles form 1 pound in weight.
If you have multiple 10 rockets made in the shape of hearts, it will sum to around 1 lb.
10 love stones is equal to to about a lb.