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bone or no bone?


jjim

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hi there all. i've been dropping in on the forums now and again as a spectator for a bit but never posted so hello! i found this item yesterday in the shallows of lake erie. i've been picking up rocks in the lake and niagara river since i was a kid but never came across anything that looked like this. it's about 2 inches long. the whitish band that forms the perimeter has sort of what looks like a recently exposed section on the "underside" and the white material is almost chalky (i can scrape some tiny dust-bits off with just my fingernail).  the kid in me wants to believe this is an old bone with some glacier-era striations grooved into the back end of it but being a novice i obviously can't make a determination on my own. any help would be appreciated. thanks!5b4279bf6c438_edit1.thumb.jpg.537bde420842b248eb36002607a9ea0f.jpg

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I’m not seeing characteristics consistent with bone.

Picture one and three look a bit like a concretion, but then the lines and layers in pic 2 make it looks like some kind of very worn shell. 

Concretions can contain fossils.

Here is a good example of one I found about a week ago in Texas.

 

As I found it:

47BDF95E-2E14-40F4-8BC8-6B4CBFD109B8.thumb.jpeg.367f7ea9c6e00144997b8d6bfccd1ed2.jpeg

 

After working on it for a while. So far parts of 2 clams and 3 rudists? Not certain of their ID. Point is concretions can contain fossils.

71E15C36-D7B9-4349-A2C6-EC3C43186BC4.thumb.jpeg.14dac5f54cf0746e876cbe40954ff03a.jpeg

  • I found this Informative 2
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It looks like this may have been a stratified clast that was reworked into the rock formation which this rock was later broken from to me. 

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4 hours ago, GeschWhat said:

I've been thinking about this piece. By chance does it feel sticky if you touch it with wet fingers?

Oh come on, just lick it. :)

If it sticks to your tongue it could be fossil poop. 

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the outside "top" part does indeed feel tacky when wet. the inner dark part is not at all. it's definitely a chunk of something that broke off a larger piece, probably relatively recently, as the rocks around here tend to get smoothed pretty quickly from the water and sand acting as a tumbler.  the edge might show a little better in this photo. thanks for your input everyone!

edit4.jpg

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On ‎08‎/‎07‎/‎2018 at 11:22 PM, KimTexan said:

I’m not seeing characteristics consistent with bone.

Picture one and three look a bit like a concretion, but then the lines and layers in pic 2 make it looks like some kind of very worn shell. 

Concretions can contain fossils.

Here is a good example of one I found about a week ago in Texas.

 

As I found it:

47BDF95E-2E14-40F4-8BC8-6B4CBFD109B8.thumb.jpeg.367f7ea9c6e00144997b8d6bfccd1ed2.jpeg

 

After working on it for a while. So far parts of 2 clams and 3 rudists? Not certain of their ID. Point is concretions can contain fossils.

71E15C36-D7B9-4349-A2C6-EC3C43186BC4.thumb.jpeg.14dac5f54cf0746e876cbe40954ff03a.jpeg

Your clams are nice inoceramus, great.:D

 

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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On ‎08‎/‎07‎/‎2018 at 10:59 PM, jjim said:

edit 3.jpg

 

On ‎09‎/‎07‎/‎2018 at 4:23 AM, GeschWhat said:

This does look like shell or possibly even plant material. 

 

22 hours ago, Rockwood said:

It looks like this may have been a stratified clast that was reworked into the rock formation which this rock was later broken from to me. 

This reminds me of a piece i posted some months ago.

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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On ‎27‎/‎02‎/‎2018 at 4:34 PM, fifbrindacier said:

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

 

On ‎27‎/‎02‎/‎2018 at 4:46 PM, fifbrindacier said:

The "front" :

IMG_0876.thumb.JPG.cfd79bfbfbd468ac5f2a00efe741e329.JPG

 

On ‎19‎/‎03‎/‎2018 at 3:57 PM, fifbrindacier said:

Hi again everybody.

A part of the piece have broken.

IMG_0951.thumb.JPG.0c1186e67f1af7f9659ec8ff6bd7a756.JPG

 

On ‎19‎/‎03‎/‎2018 at 4:39 PM, fifbrindacier said:

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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thanks everyone. after looking into this more  i now think it is a piece of chert nodule. i find interesting things all the time in the waters here so i'll likely be posting again. it's a cool resource. no bone but still neat. thanks again!

 

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