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GeorgeL
Can anyone please identify this rock found on the Downs near Boxgrove. Size about 5cm by 4cm    Thanks George Click image for larger version - Name: 19 03 20_fossil teeth_2932.jpg, Views: 35, Size: 284.15 KB Click image for larger version - Name: 19 03 20_fossil teeth_2933.jpg, Views: 36, Size: 226.34 KB Click image for larger version - Name: 19 03 20_fossil teeth_2934.jpg, Views: 27, Size: 217.27 KB
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pauledevans
It’s a section of mammal jaw bone with teeth in situ. Based on the structure it’s probably a species of deer. There’s been deer there for a few million years. Whether it’s started to mineralise would indicate whether it’s technically a fossil. I’ve not tried this myself, but I believe if you help a flame to the bone, if the burnt material smells nasty and organic, it’s still bone and points to a younger age. I’m not an expert on this, so other’s may have a better view.
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GeorgeL
Thank you Paul.   It looks to me as if the bone has mineralised   I have tried the flame test and there  was no organic smell or signs of burning so I suppose it would be at least a million years old.  Is there any other way of showing the degree of mineralisation or its age   Many thanks  George
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