I have had a few newer Wagner skillets that had tiny shiny specks on/in them, It is like they are actually part of the casting, I also tried a torch to see if it was lead and if it would melt, it did not and the seasoning did not cover it, I tried scratching at them and the spots seemed harder than the surrounding cast iron, my thoughts are they are an impurity in the iron, they don't affect the usability of the skillets and since they were newer Wagners with not much value other than for using I did not worry much about them.