Need help identifying.

[ILikeMoney]

I found this in the middle of nowhere Ohio in a field.
Non magnetic and weighs over 300 grams.
It looks to have been super heated.
I have no idea what kind of rock it is and any info
Would be greatly appreciated.

 

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[Kray Gelder]

Definitely some strange surface features. Almost looks like a crackled glaze on that one section of it. Sorry, no clue.

 

[ToddsPoint]

The two pics on the left look like limestone. Not so much on the right pics. Not sure. Gary

 

[IAMZIM]

It reminds me of some kind of pottery that had glazing on it. Weird.

 

[Steve1236]

Maybe from a really old homemade kiln, this is a image I found online of ancient Roman kilns unearthed in Israel. I honestly don't know but cool find!

 

[Eu_citzen]

It reminds me of some kind of pottery that had glazing on it. Weird.

I second this.