The Great lakes copper complex also used cold forging which avoids the issues of vaporization. Can’t have your brain melted by vaporized materials if you never melt it down or cast it, though thats only possible due to the relative purity of the more veins.
Also the Great lakes copper complex most likely kicked off due to the collapse of trade routes making getting good quality stone for tools a right pain in the ass.
The Great lakes copper complex also used cold forging which avoids the issues of vaporization. Can’t have your brain melted by vaporized materials if you never melt it down or cast it, though thats only possible due to the relative purity of the more veins.
Also the Great lakes copper complex most likely kicked off due to the collapse of trade routes making getting good quality stone for tools a right pain in the ass.