I found this on the North Yorkshire coast many years ago and was always led to believe that it was dinosaur poo. It was surrounded but a few similar objects, but they were more spherical and without the lump on top. Any ideas as to what it really is?
That looks remarkably regular - possibly too regular for a fossil or rock, and too regular for fossil dino poo.
How heavy is it?
Is a magnet attracted to it?
If you hit it with a hammer (gently), can you get it to 'ring'? (hold it lightly by two opposite points)
(I'm thinking iron ballast/cargo from a shipwreck, perhaps.)
Thanks for your response. Perhaps you are right about it being cargo of some sort. I did the tests as you suggested.
It weighs 1.9 kilos and it's widest circumference is 36cms. When struck it just made a dull thud and it has no attraction with a magnet. Also, where the smaller sphere joins with the larger one, there is a rough seam which looks similar to gold, and I have been told that it is fool's gold!
I thought that 'seam' looked like a welding line, but you're picture's a bit to fuzzy for me to see it well.
You say 'it's widest circumference is 36cms'.
That gives it a volume of 250cc, and since it weighs 1.9kg, that implies a density of 7.6g/cc.
...Which is very heavy. Given the approximation in measurement, it suggests it is pure iron.
...Which it is obviously not since it shows no attraction with a magnet and since it does not 'ring' at all.
Please could you confirm the circumference/diameter, including the units (cm/mm) and weight.
This is the only one you've got, right? (You didn't collect any of the others you mentioned?)
It would be interesting to break one open to see inside, but you probably would not want to do that.
Anybody else got an idea?