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Possible faint fossil outline on flint?


ZenMachine

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Hi there

 

I am a 35 year old man from County Antrim in N. Ireland. A while back, while walking along the shore I found a piece of flint that I thought looked "worked". I found this really fascinating and have been bitten by "the bug". I always keep an eye out when I am out with my Son, for possible worked stone or fossils. I came across a flint rock that has a faint outline that looks almost insect like to me?I hope someone might be good enough to have a look for me? Any feedback or advice appreciated!

Regards, Jonathan 

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Flint forms nodules which can replace or enclose fossils. This does look like a fossil but not an insect. It might be a partial ammonite but there is not much to go on.

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I agree with Kosmoceras. Banded Flint.

Regards,

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Thanks all. Oh well. I have read online that a place called Currans point on the Larne coast is a good spot, so will have a look there. I am the eternal optimist. Below for interests sake are some of the flint pieces I thought could conceivably have been "worked". Beautiful and fun to collect regardless!

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Keep looking. There are ammonites and other goodies to be found there on the Larne coast but note that some of the coast is a protected area. I don't think what you have is banded flint, the 'bands' appear to be oriented perpendicular to original layering although that is admittedly difficult to tell from the image. Either way keep looking.

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2 hours ago, ZenMachine said:

I did not. Very cool tho. Cheers. Any tips on where/how to look?

If you want to look for fossils, i found some locations you might like!

 

In Northern Ireland I found those two:

Whitepark bay:  http://english.fossiel.net/sites/fossil_site.php?plaats=74

Larne: http://english.fossiel.net/sites/fossil_site.php?plaats=74

 

Then in Ireland (but near the border) I found those two:

Malahide: http://english.fossiel.net/sites/fossil_site.php?plaats=97

Bundoran: http://english.fossiel.net/sites/fossil_site.php?plaats=93

 

Have fun fossil-hunting! And keep us updated if you find anything!

 

Best regards,

 

Max

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Max Derème

 

"I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day."

   - Mary Anning >< Remarkable Creatures, Tracy Chevalier

 

Instagram: @world_of_fossils

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On 08/01/2017 at 8:44 AM, westcoast said:

I don't think what you have is banded flint, the 'bands' appear to be oriented perpendicular to original layering although that is admittedly difficult to tell from the image.

 

Flint doesn't really display layers as you describe. So far I see no reason not to call this banded flint.

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Dampening the flint with some water will probably show additional characteristics of the rock. 

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The human mind has the ability to believe anything is true.  -  JJ

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I do not see this as a banded chert. the rough object in the middle does not continue all the way across the surface and shows no color differences. The lines are to uniform in caricature for a banded chert.

I think it is the impression of a shell, but do not see it as an identifiable fossil. Could be a clam, brachiopod, ammonite, snail, coral, trilobite or other.

 

The other pieces do not look worked to Me, but maybe spall chips from making tools.

 

Tony

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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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Thanks for all the replies. I have wet the flint as advised JohnJ and tried to take close ups of the pattern under a bright light. 

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Can You post pictures of the sides and back?

I can see more pattern in it with the new pictures.:dinothumb: Definitely looks like something is there.

 

Tony

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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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5 minutes ago, ynot said:

Can You post pictures of the sides and back?

I can see more pattern in it with the new pictures.:dinothumb: Definitely looks like something is there.

 

Tony

 

Will post some more of from all angles: 

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That is fine. I just wanted to see if the marks were visible on the back. It is definitely not a banded chert.

Wait for the others to give thier opinions though, there maybe some other ideas as to what it is.

 

Tony

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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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12 minutes ago, TqB said:

 

Still looks like typical banded flint. Similar in formation to this one, for example, identified on the UK Natural History Museum ID forum.

 

I can see that as being what this rock is.

Never seen a chert like that before!

Tony

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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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Based on the damp flint photos, I agree with the others that it appears to be an inclusion of banded flint.  As you can see from the other blotches and spots, flint can have a variety of inclusions...sometimes they are fossils; sometimes they are strange geologic shapes. 

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The human mind has the ability to believe anything is true.  -  JJ

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The only appropriate thing that crossed my mind was a partial crinoid column with a cirrus (an articulated appendage projecting from an ossicle that forms part of the column). The variable space (in some of the portions) between of the supposed columnals, also the irregular outer/lateral line, lead me to think about a geological wonder of a flint nodule. Interesting is, that in both cases presented, the internal 'core' has a 3D preservation bias. Also, I agree with JohnJ, that flint can have a variety of inclusions, not in all cases a fossil; but I can't rule out the possibility of my initial thought, considering these drawings (especially sample c):

 

F11.large.jpg

 

 

 

 

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