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coprolithe ?


fifbrindacier

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I wonder if this is a coprolithe or a concretion (or alien stuff ? :P ). When you scratch it, it lefts dark powder on your fingers. I found it on the foreshore of Bidart. It is 3,5 cm of length and about 2 cm of width.

post-21013-0-37214900-1469550460_thumb.jpgpost-21013-0-73329200-1469550554_thumb.jpg

Edited by fifbrindacier

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"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

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Two other pics of it.

post-21013-0-23205200-1469550686_thumb.jpgpost-21013-0-50817100-1469550772_thumb.jpg

theme-celtique.png.bbc4d5765974b5daba0607d157eecfed.png.7c09081f292875c94595c562a862958c.png

"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

photo-thumb-12286.jpg.878620deab804c0e4e53f3eab4625b4c.jpg

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It looks very much like the coprolites found on the Isle of Wight.

I agree. I don't claim to know much about coprolites but I've a few from the Isle of Wight and that looks pretty similar to the ones I have.

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It could be ocean-tumbled ship ballast or maybe hardened tar (if it leaves dark powder on your fingers). Or maybe coal slag from an old steam ship?

"Men became scientific because they expected Law in Nature, and they expected Law in Nature because they believed in a Legislator." - C.S. Lewis

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I think it's a coprolite,coprolites being slighty more common in Maastrichtian to Paleogene Tethys deposits.If John has similar looking items,i think that argues FOR a biological origin .

 

 

 

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Thanks for your answers, i wasn't sure about it being a coprolite, it was taken in the rock, so was there since some time and no something artificial and recent.

Edited by JohnJ
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theme-celtique.png.bbc4d5765974b5daba0607d157eecfed.png.7c09081f292875c94595c562a862958c.png

"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

photo-thumb-12286.jpg.878620deab804c0e4e53f3eab4625b4c.jpg

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