Why does gold 24kt gold leaf cost so much less than bullion?

Question

Oz. for Oz., why does 24 kt gold leaf cost so much less than bullion? Is there any money to be made in gold leaf? Serious answers only please.

Answer 1

cuz bullion is pure gold 24kt gold has other metals mix in it

Answer 2

I would think that the cost of gold leaf would be more expensive than bullion (like for like) as the leaf has to be manufactured. On the other hand if you were selling gold leaf you would get less as it is not so practicable to hold.