Detected This w/ AT PRo came up a 64-65 and is super heavy

[buttedigger]

No sure what it is, first thought was a giant piece of lead but it is extremely hard to grind into. As you can see the grinder spot came out looking like steel. So Maybe iron ore?

 

[bigfoot1]

try nickle test,avail at pharmacy....a simple guess

 

[buttedigger]

OK will do thanks

 

[cudamark]

Maybe a piece of an old cast iron pipe?