What do I have here?

[bubajuk]

Rang up like a decent target on nox 800

 

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[Limitool]

Possibly a piece of slag from molten metal...? Stay tuned for other comments.

 

[tamrock]

Looks like a little copper oxide within in it.

 

[Ism]

I have detected along Lake Superior and found rocks with copper running through them. However, the copper in those rocks had a patina like a well circulated penny. That looks like a copper alloy in molten slag.

 

[AstralDruid]

As I've been saying for quite a few years.. The Equinox (i love them, now) hasn't a clue what it is detecting.... Could be a gold nugget, or something like you have there !!