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gordonhb
Does any body know what this is?
Just found it in garden 2019 05 16 GHB Fossil back.jpg  2019 05 16 GHB Fossil.jpg  2019 05 16 GHB Fossil.jpg 
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Gary W
It is a coral. Possibly from carboniferous limestone.
Gary
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prep01
Hello Gordon and welcome to the forum. I don't know the geology of your area so I have just looked it up and it shows Triassic / Permian geology. Your specimen of a very nice horn coral might have been imported from somewhere with Carboniferous limestone, but hopefully Tarquin mihgti be able to say more.
Colin Huller
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Many thanks all!
So not from Darlington Area at all.
Regards
Gordon
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TqB
It's definitely a Carboniferous coral - Aulophyllum fungites which has a distinctive internal structure. It does occur in County Durham, mainly in the Great Limestone - you sometimes get it in Frosterley Marble though it's one of the less common ones.
Here's a section of one from Weardale that I polished:
IMG_2518.jpeg 
Tarquin
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prep01
Tarquin - that's a beautiful and distinctive cross-section.
Colin Huller
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TqB
prep01 wrote:
Tarquin - that's a beautiful and distinctive cross-section.


Thanks, Colin, it is nicer preservation than usual, with clear calcite infill. I keep a special lookout for them. [smile]
Tarquin
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