Any idea what this "rock" is???

[paddyslevin]

Hi all, found this small rock today when I was out with the ace 250. It is not very heavy, lighter than a rock of this size, it's showing between Foil and Brass on the 250? Any ideas anybody

 

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[mihmar79]

Hey, i found similar rock before, and i found my rock was: Pitch Coke... Maybe yours to !?

Carbon Materials - Shamokin Carbons

 

[DDancer]

Its a piece of coal. Coal will sound off on detectors and pieces of coal that do so are often called "clinkers". In some area's they will drive people nuts~ especially on old home sites and near rail road tracks.

 

[paddyslevin]

The site I was in was an old Ring fort, no houses, roads or railways nearby? But could be!