Yes! Pure copper has a higher density than iron, so 1 tonne or 1 cubic foot of copper will weigh more than iron. A cubic foot of copper weighs 559 lb, compared to 491 lb for iron. Despite this, copper is still not the heaviest metal, and silver or gold is even heavier than it. When you see thieves carrying bars of gold in a movie, you know they are faking it! Read more