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Scrumpy
Hi everyone
The ammonite was found at Port Mulgrave
I thought it was one of the common Dacs when I first picked it up, but once cleaned I’ve noticed some small nodes and the ribbing seems different. It measures 70mm
The next I know isn’t a fossil but I was hoping someone could tell me roughly how long a horseshoe would need to be in the water to end up like this? It was found on a beach in Northumberland near Amble
Thanks in advance
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Elbert
Hello, I think you have found a nice specimen of Peronoceras turriculatum, to be absolutely sure you`ll need to prep it, wich is not easy; take it as slowly as possible to avoid damaging the ammonite.
About the horseshoe; a crust like that can develop in 50 years, but also can be a lot older...

greets, Bert
the search is as valuable as the finds...
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Scrumpy
Thanks Bert
As for prepping, is it best practice to reveal the outer whorl first and gradually make your way to the center?
Thanks Rob
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Elbert
Hello, yes, this is the way  I normally clean them.
When the rock near the centre is very hard, you can choose to wetten it and deep freeze it and this several times.
After a couple of times you`ll see flakes coming off the nodule; the difficult bit is to decide when to stop the freezing procedure, because the proces will also weaken the ammonite...
Most times I will start prepping with the pen when cracks in the nodule are visible when it dries up.
Main advantage is that the centre will often come off clean, but sometimes the ammonite breaks, so keep the glue near.

greets, Bert
the search is as valuable as the finds...
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