It's an ammonite fossil ... they are very beautiful inside (often filled with opal or opalite)
https://en.wikipedia.org/wiki/Ammonoidea
You're lucky to live in a region where those turn up. In my area, they range in price from about $5 US to thousands of dollars, depending on the size and the quality of the rock within.
How large is that one?
Mine is very small
Thanks for the information my friend and yes my region is full of those beautiful things but the government don't give a damn about our region we have berberian caves made by our ancestor thousands of years ago and other great stuff but they don't care
Anyway this one is about 10cm
I mean 30 cm lol
Wow that's an impressive size. You should consider finding a buyer and "mining" a few of them ... you could make a tidy profit.
Aside from that, I would love to see more photographs of, and posts about, the beautiful things from your region (especially since your government doesn't care about them). You could bring a valuable service to humanity by documenting them before they are lost to vandalism and disuse.
It would be my pleasure actually you can check my previous posts if you are interested and follow me for new ones 😉
I have followed you and promoted you in a few places too.
Wow thanks my friend I really appreciate that
I have followed you too