✅ SOLVED Help needed. Hot Rock or something else?

[Eazy D]

I found this item while swinging my AT Pro along the shores of Lake Erie. I thought perhaps a hot rock but as I look at it, I see the shape of a knife blade. Probably wishful thinking but it's a solid 77 on the AT Pro with no sign of iron. I know my best chance to figure it out is this site. Thanks for your help and input.

 

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[Obsessive]

looks like one of them fire nuggets I hear about... basically a chunk of molten metal of sorts. Often aluminum cans melted in a camp fire.

 

[P.ALLEN]

What Obsessive said. I've seen it, and if it was on the beach that makes sense, beach campfires are the best for beer and shenanigans.