Indian or manmade?

[undertaker]

I found this piece on a indian site it looks to be a shard from a bowl. I have found numerous pieces of indian pottery but this is made out of a stone looking material and there doesnt appear to have any glaze on it that you might see in a newer type bowl. Did they ever make bowls of this type stone? My son says its probably a piece of sewer pipe.

 

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[undertaker]

pic 2

 

[undertaker]

last pic

 

[Old Dog]

Looks like "Mom" may be right.

OD

 

[Abbey]

I'm not sure, but I think at one point in history, the gov. had drainage pipes placed...sheesh- all over the place it seems. I find bits everywhere land hits water. Always the same color and texture. Always the same thickness. That's my guess.
Ab