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fifbrindacier

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Hi, i tried a new spot : marls from the Maestritchian with ridges of marly limestones, above them are limestones from the Dano-Montian. There, according to the geologic informations i have, you can find Pachydiscus, Hamites, Echinids, Inocerams, Brachiopods.

I found this piece and i first thought it was an oyster, but now i wonder if it could be a part of a rudist. It is about 11 centimeters long for about 10 centimeters of width. The whole block is very heavy.

IMG_0865.thumb.JPG.ab31e6d67a07c98c88a8ed3c270fbd71.JPG

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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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Here is the "bottom" of it (on the right in the previous photo.

IMG_0872.thumb.JPG.f9423431b7ab932f4539dc6587f67ac6.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

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The "front" :

IMG_0876.thumb.JPG.cfd79bfbfbd468ac5f2a00efe741e329.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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The other side :

IMG_0855.thumb.JPG.24f8c6b1ad5bb3d79b0ccdd026c4b3f1.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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IMG_0864.thumb.JPG.9967b9bd9e2e5d2368d19f9349ad6259.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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So if it's not a fossil, those strays must have occur when the stone detached and fell, or could there be another cause ?

 

Bottom right of the fourth photo :

IMG_0861.thumb.JPG.2fd19d06412b6c66e10e6e729c568330.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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9 minutes ago, fifbrindacier said:

So if it's not a fossil, those strays must have occur when the stone detached and fell, or could there be another cause ?

The marks look like slickensides to Me.

This is caused when opposite sides of a crack are pushed against each other during slippage.

Darwin said: " Man sprang from monkeys."

Will Rogers said: " Some of them didn't spring far enough."

 

My Fossil collection - My Mineral collection

My favorite thread on TFF.

 

 

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58 minutes ago, ynot said:

The marks look like slickensides to Me.

This is caused when opposite sides of a crack are pushed against each other during slippage.

That was my first thought too

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Thank you all for your answers, funny slickenslides so, and probably shell bits but i'll only know it when i'll crack it up.:)

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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Without a transverse cut (perpendicular to the fibers axes) everything is just a guess. It could be geological (like satin spar or similar), petrified wood, rudist or something else.

 

 

ab.JPG

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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  • 3 weeks later...

Hi again everybody.

A part of the piece have broken.

IMG_0951.thumb.JPG.0c1186e67f1af7f9659ec8ff6bd7a756.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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Here is the broken bit.

"Internal" part.

IMG_0936.thumb.JPG.781e28c1fb4694e21912f114b8aaad05.JPG

 

The "external" part.

IMG_0935.thumb.JPG.510d18d0052fdd2e30edd31a3dbc7013.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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IMG_0926.thumb.JPG.e4de34d35ff1da69fe47ca016e9da379.JPG

 

The broken side.

IMG_0931.thumb.JPG.3ee3f230dc593db0d7b2de1a1197b50c.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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As @abyssunder asked i cut it perpendicular to the striations.

IMG_0953.thumb.JPG.53df2ca0b299520e1273be7e59c249ea.JPGIMG_0981.thumb.JPG.e32eccc0a3e20c15e88c72340edfc352.JPGIMG_0961.thumb.JPG.87ae1895cdf612bb2db5def9dd3bcd9e.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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IMG_0972.thumb.JPG.15b351a2fc0a5477aa0cf7dda61c63c5.JPGIMG_0978.thumb.JPG.6f924a9bba3961927812125ff6495e33.JPGIMG_0970.thumb.JPG.6938096024f7dd89e7fff189a9309bc6.JPGIMG_0960.thumb.JPG.98ce8675bd057781903dae0bc4f155a7.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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When I said a transverse cut, I was referring to a transverse section through the specimen. :blush:
We have to see how it looks in transverse section.

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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The new pictures show the features are surface only and the "grain" of the rock looks uniform. I am still thinking it is not a fossil.

Darwin said: " Man sprang from monkeys."

Will Rogers said: " Some of them didn't spring far enough."

 

My Fossil collection - My Mineral collection

My favorite thread on TFF.

 

 

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