Mystery rock

[Julien10000]

Hi. I ve found this Kind of stone with shiny black face with my metal detector in a field. React to detector and neodym magnet. What is it?

 

Amazon Forum Fav 👍

Upgraded Night Vision Monocular Digital Infrared Monocular Telescope for 100% Darkness with 8X Zoom - Grab it through Amazon!

[Jason in Enid]

Cant answer that. Broken machine part? Furnace slag? Meteorite? Artillery shrapnel?

 

[ANTIQUARIAN]

Looks like iron slag to me, but I wouldn't rule out it being a meteorite.
Here are some pics of iron slag for comparison.

Dave

 

[Julien10000]

Thanks a lot guys!! I will cut small piece of it to look inside.