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Aran
Hi I found this what I think is bone at blue anchor.would love to know if it is bone and possibly what from. Many thanks Click image for larger version - Name: 15351970900549133488935663235856.jpg, Views: 56, Size: 2.83 MB Click image for larger version - Name: 1535197119640984351220388850907.jpg, Views: 58, Size: 2.42 MB Click image for larger version - Name: 15351971477594336276774396243700.jpg, Views: 53, Size: 2.08 MB Click image for larger version - Name: 15351971869341649085899081046797.jpg, Views: 51, Size: 3.00 MB
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prep01
I don't see any signs that it might be bone I'm afraid. I think it's a calcite structure called 'beef' but the one photo that would help me is too blurred!
Colin Huller
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Aran
I will try and get a better picture a bit later thankyou
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Aran
Hope this is a bit clearer. Click image for larger version - Name: 15352270170096654167131995861680.jpg, Views: 43, Size: 3.07 MB
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prep01
Thanks for the new photo, but I'm 99.999% sure that it's flint / chert deposited there by some means. Can you scratch it with a steel object? If it doesn't then it's flint! If it does then I have to think again and "phone a friend" geologist!
Colin Huller
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Aran
I just tried it with a nail and yes it does scratch very easy it is also quite pourus if that helps.
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Dirty Pete
Can you scratch it with your finger nails? If you can I'd go for gypsum, plenty of it along that stretch of coast and can exhibit a wide range of colours.

Pete.
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Aran
I can't scratch it with my fingernail
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MicroFossilMan
If you can scratch it with a steel nail and not with a finger-nail, then, assuming it's not bone, it might be calcite. Does it fizz with a little dilute acid (try vinegar if you have nothing else, but you may have to look hard to see the bubbles when using vinegar). There are formations at Blue Anchor called shale-with-beef, the beef being a fibrous form of calcite. Admittedly yours doesn't look that fibrous but maybe there's beef and there's beef ...
MFM
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Dirty Pete
It certainly looks mineral rather than bone. If vinegar has no effect it could be dolomite/dolomitic which would react with a stronger acid if you have any (10%+ HCl).

Pete

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Aran
I just tried vinegar but nothing happened I think it was just the shape of it that got me thinking it was something else that and my imagination running away a bit lol.i found this earlier today in the same area it came out of a block with lots of other brown pieces amongst it. Any ideas? It's about 30mm long and where the point tapers it has very small lines in it. Click image for larger version - Name: 15352956489035171502958052237120.jpg, Views: 35, Size: 6.63 MB Click image for larger version - Name: 15352957423681550280714093598611.jpg, Views: 35, Size: 5.91 MB
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prep01
I have no beef with either of these being beef then - vinegar doesn't always work on Calcite crystals.
Colin Huller
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Goldkaiser
Could this not be an itchy tooth? I see some striations on the photo at the bottom and then an enlarged area like a possible root?
I’ve zoomed in and tried to draw it on but my fingers are too fat to do so on a phone :p Click image for larger version - Name: 0A66D31A-9C5A-4BA5-AE7F-290316E6DDB1.jpeg, Views: 37, Size: 207.01 KB
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Aran
That's what I was thinking. I've looked at other pics of ichthyosaur teeth and I think it is. I'm going to try and remove a bit of the surrounding rock and go from there.
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Aran
Those lines are a lot clearer now Click image for larger version - Name: 15353026538444125157753850698684.jpg, Views: 52, Size: 2.88 MB
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Crann
Sure looks like an Ichthyosaur tooth...
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