Did the Northland Pyrite Mine and Thompson-Lundmark Mine contain more than just gold?
Northland Pyrite Mine:  Minerals present at the mine include chalcopyrite, pyrite and pyrrhotite, deposited in Precambrian volcanic rock of the Canadian Shield. Thompson-Lundmark Mine:  The mine processed 133,989 tons of ore to produce 70,339 troy ounces (2188 kg) of gold and 13,782 troy ounces (429 kg) of silver.
yes