Strange oily smooth rock found on PEI beach

[Jesselaing]

I found this weird rock today. I though it may be ambergris but it isnt flammable. It does have a strange smell and feels greasy on the shiny yellow/green parts. I held a lighter's flame to it and after a couple seconds it made a popping sound. Some parts have a bubbly bone marrow like appearance

 

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[sutphin]

WELCOME TO TNET NEW MEMBER. IM NOT SURE WHAT YOUR QUESTION IS BUT ONE OF THE OTHER MEMBERS WILL CHIME IN AND HELP YOU OUT.

 

[trikikiwi]

Welcome to TreasureNet
A photograph will be very helpful - but from what you describe it sounds like a lump of tallow which is fatty kitchen waste.
What sort of odour does it have?

Cheers, Mike

 

[Dodad]

Maybe petrified poo. Did you wash your hands when you finished handling it?

 

[thoroughbred9000]

Hi.Ambergris is sometimes difficult to identify....so I'm told. The fact it bubbled is a good sign. The better test is to heat a wire to red hot and sink it into the rock. There is a Youtube video on how to identify Ambergris that shows this technique. Look at many photos of actual stuff to see if yours resembles any others! Good luck!