slate

[bruce]

Pics green blacked slate river bank from the digging of a gas main 15 ft. down. seems to be chipped on ?

 

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[justonemore]

Probably just a chunk of slate left here by the glaciers. I find plenty of chunks laying around here in Northern Indiana.

 

[Indian Steve]

That sure is a pretty piece of slate!

 

[Mrdigz]

I can't see any work done. But I also think it's a really nice looking piece of slate!

 

[rock]

I bet some knapers would like that piece to make something with.

 

[PaDirtDigger]

That green banned slate does not knap. It's grainy (though finely grained) sedimentary rock, and sometimes, ancient pieces show some chipping, but I believe that was to help get to the desired shape before any pecking and grinding and polishing... I have seen many fine newly made pieces from slate though, so there is a small market for stuff like that

 

[joshuaream]

It depends where you found it, near a glacial morraine and it could be natural. South of the morraine and it was probably carried in to be worked and then discarded.

It looks to have been polished a bit, probably to check the banding. How big is it?

 

[bruce]

Here is more pics for the size. joshuaream !

 

[Mrdigz]

It Really is a nice looking piece.

 

[rock]

Big piece looks like water poilish