Not sure.could be a knife cutting tool.

[Worldman304]

Really I'm not sure,coukd be a neat rock.it does appear to be worked shaped n some fashion and have some fine flaking.its a translucent material and not sure what it is.found near Ohio river.

[SDhunter]

Not really sure. There looks like there might be an edge on it.

[BabaORiley]

Yeah I see a worked edge as well and it looks like the topside is flat. It looks like it was maybe a cutting tool for something. That purpose though remains a mystery. The lithic looks interesting though...Knox County Chert?

[Worldman304]

Not sure it's been a ongoing question as to what the lithic is.is diff than much I've seen it's super glassy like almost like obsidian.ima check out that Knox co chert and see