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Chillytay

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A  month ago had to have some sewer work done and when completed they leveled ground threw down some seed and some hay I looked after they were done and this rock was not in soil. A couple days ago I noticed the rock laying kinda buried in the mud was not to deep but it was sunk in. It is to big for it to be thrown from car tire as well as the area it was found is at least 30ft from road. I did some test a magnet had weak attraction I then tested on porcelain and was a barely visible unless I pressed pretty hard and then it left a weak gray mark. Any help is appreciated 

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Edited by Chillytay

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My guess is volcanic basalt. Sorry.

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At one time millions of years ago their may have been. Or it could have been glacial float from the north 

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V.B. Doesn’t really look like that at least not images I’m seeing from google search. My daughter is checking with here geology teacher today he should give me a definitive answer it help to see in person I’m sure. Thanks for your help though.

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I'm not an expert either but  I'm 95% sure it's basalt. It's definitely not a meteorite.

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3 minutes ago, Chillytay said:

V.B. Doesn’t really look like that at least not images I’m seeing from google search. My daughter is checking with here geology teacher today he should give me a definitive answer it help to see in person I’m sure. Thanks for your help though.

I should have said water worn volcanic basalt. Obviously it's been smoothed by erosion, most likely by water.

Let us know what the geology teacher thinks.

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We have millions of acres of basalt lave flows here. I have never seen any basalt that looks like that. May be some sort of volcanic glass, but the glass here is much darker.

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The more I look, the more convinced I am it's some sort of obsidian.

Jim

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