Any way this is natural

[Boomerboom]

Son found this bunch of stones with a bent broken penny attached in middle

 

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[GB1]

what is that

 

[Boomerboom]

what is that

Stumped has the texture of coal but I don't think it is and it has a penny that's bend and broken in it

 

[Boomerboom]

Says 79 on the penny so it's not that old

 

[mick56]

Looks like a melted blob of aluminum.

 

[pepperj]

I've seen some pretty ugly coin growths, but your's wins hands down.

 

[sutphin]

HOT FIRE ITEM..

 

[Indian Steve]

I agree with Sutphin.

 

[creskol]

Somebody had a campfire "penny melt."

 

[P.ALLEN]

IMO because of the second photo, there appears to be a quartz pebble. OP correct me if I'm wrong, but if that is the case I would go with an iron replaced or iron leached hardened piece of sandstone conglomerate. I don't see a penny but the natural dips and concave features lead me to believe that it's natural tough piece of sandstone conglomerate.

Edit: After looking at it again, I see the penny, I agree with the folks above melted blob.

 

[BosnMate]

Somebody dropped a penny into an empty Bud can, then threw it in the camp fire.

 

[Icewing]