Placeurbets Posted May 25 Share Posted May 25 Found a 177 gram black on the outside. But platinum , Crome when I sanded a corner. it attracts to a magnet slightly. But won’t grab. Using earth magnets very strong. Any ideas what it might be Quote Link to comment Share on other sites More sharing options...
Placeurbets Posted May 25 Author Share Posted May 25 Quote Link to comment Share on other sites More sharing options...
Mikestang Posted May 26 Share Posted May 26 More likely it's ferromanganese. Quote Link to comment Share on other sites More sharing options...
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