Why didn't the Incas have iron?

Because Iron deposits were not common in South America. And even if that was not the case, its unlikely they'd be able to reach it. Copper and tin were abundant and enabled the Inca to make their tools and other objects out of that. read more

Copper and tin were abundant and enabled the Inca to make their tools and other objects out of that. And despite the Inca Empire being very wealthy with gold and silver, gold was a more ceremonial metal or a symbol of status. It wouldn't be used for anything that iron could be used for. read more