Found this washed up on the shore on the south coast of Devon...
It has an earthy texture and is fairly soft (can make an indent with your nail on the surface). It also breaks up when you rub the surface but has quite a unique composition, not like any soil. Its weight just less than a kilo and is the size of my hand.
Initially had some suspicions it was ambergris but has only a very faint scent and sinks when I place it in water.
Does anyone have any ideas as to what it may be?
Looks man-made to me.
Shipwreck cargoes, and garbage brought to the sea by rivers are so varied, it could be a remnant of almost anything.
I wonder if it burns/melts? (suggesting plastic)
Cheers for the reply Mike!
Its pretty damp at the moment as it was plucked from the beach this morning, but when it dries out more ill see if I can burn some of it and post the results back here.
I have also discovered a similar rock along the beach that floats and was hoping you could tell me if you managed to confirm whether your rock was indeed ambergris and how you did this.
If you feel uncomfortable replying to this post I am more than happy to give you my personal e-mail to message in private
Interesting, looks man made but well rounded and it sinks in water.
Could be ships ballast, sand stone worn into the shape it has acquired because of coastal hydraulics.