🔎 UNIDENTIFIED Small hot rock, not metallic, kinda bumpy.

[jmiles540]

I found this hot rock on a beach in Wisconsin, on Lake Michigan. It’s small but set of my detector and pinpointer. It doesn’t look metallic and it’s not magnetic. Any ideas?

 

[pepperj]

I found this hot rock on a beach in Wisconsin, on Lake Michigan. It’s small but set of my detector and pinpointer. It doesn’t look metallic and it’s not magnetic. Any ideas?

Are you sure it's a rock?
Could be a blob of melted metal.
Have you scratched the surface yet.?

 

[jmiles540]

Are you sure it's a rock?
Could be a blob of melted metal.
Have you scratched the surface yet.?

I scratched it. Sanded a bit, looks like rock.

 

[searcher]

Do a streak test.