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Thorpy Thorp
Found this digging for a new house was whole but been cut. Click image for larger version - Name: 20180922_093419.jpg, Views: 51, Size: 3.51 MB Click image for larger version - Name: 20180922_093416.jpg, Views: 47, Size: 3.79 MB
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Dirty Pete
Looks like an iron nodule so I'd go for rock rather than egg.
Pete
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Thorpy Thorp
I have looked at pictures of these and don't find any that look close to this! Still good though thanks for reply
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Richard
Looks like a siderite (iron carbonate) nodule.
It's appears to be like those found at Hengistbury Head in Dorset.
Richard
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MicroFossilMan
There are some interesting pictures of concretions/nodules here - https://www.thoughtco.com/gallery-of-concretions-4122853

See particularly images no. 9, 11, 13 and 15.

Where, by the way, was the concretion found?
MFM
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Thorpy Thorp
Was found in a field kingham oxfordshire
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Thorpy Thorp
The outside is a close match to picture 11 thank you
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prep01
Hello and welcome to the forum. The area is early Jurassic  mudstones entirely marine so it is a nodule and not an egg! It may well be Sideritic and some can contain fossils.
Colin Huller
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Dirty Pete
I guess the lesson here is that cursory google searches are not infallible unless of course the Pope has shares in google in which case it must be an egg.

Pete
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prep01
Pete, [biggrin]. I do sometimes wonder if His Holyness has shares, but seriously, experience is paramount. I am a regular identifier on several forums, FB pages etc. and your comment on here can be linked to http://www.discussfossils.com/post/yorkshire-coast-ids-please-9854832?pid=1305600812.
You need to know the right terms to use. Using the wrong term(s) can be more confusing than useful! It all comes down to experience!
Colin Huller
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Dirty Pete
Totally agree Colin, hopefully Thorpy Thorp can now spot an iron nodule/concretion from 100 yards.

Pete
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prep01
Pete = LOL, Thorpy Thorp, keep looking - we honestly don't mind giving help like this and I do try to add as much info as I can.

https://en.wikipedia.org/wiki/Concretion
Colin Huller
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