"I watch every program on the iceman-I seem to remember in one on Discovery Channel a scientist saying he was probably a metal worker because there were traces of something in his hair associated with smelting."
There were traces of arsenic aND COPPER IN THE HAIR ROOTS
Thank you! It has been a couple of years since I saw that program, so I couldn't remember what the substance was-there have been so many interesting things found with the iceman-things that showed that we were not nearly so ignorant or unable to trade with people from great distances away as believed for so many years.