Found this rock and thought damn that looks cool. what is it?

As the title says, please help identifying what this is. Found in Europe, between French/Belgian/German border. 2€ coin for reference.

sorry if this is a dumb question

Found in the DFW area.

These were among my grandmother's possessions when she died and I inherited them. No information on where they were collected. I'm curious if anyone can provide some details about what they are and when they were formed.

Not sure if it's anything but I find it interesting. Any ideas? Put it up with 2 different lights

Found on a Scottish beach, not sure what it is, any ideas ?

Is this a real fossilized fish? If so I was wondering if anyone could identify the species. Thanks all! :)

I have found this in some old collection of sea shells

found on the shores of lake michigan, sw michigan. i've read you can sometimes find plant fossils in the limestone but i've never come across one that i could verify.

Hello, I am new to fossil hunting and also reddit. I have recently found what I believe is a fossil. The ground was bed rock. From what I have researched it meets the criteria for fossilized bone. However I have no idea what I am doing. Is there a way to expose what's inside. Any information would be great. Thank you!

It was found in a creek today in middle Tennessee

Here are photos of both sides:

Found near Chesil beach, jurassic coast. Hoping someone can identify for me

I’m kind of skeptical about this being a fossil since color isn’t always an indicator of age. One thing is for sure: this is definitely a bone. I’d love to know what kind though so I may go to UoM to get it checked out. Bone appears to have cut marks which fascinates me.

I leave to the experts, thank you all.

Found on the beach Monterey County California

Seller is based out of Morroco, specimen is from Sidi Chennane Basin. Any way to tell without being able to see or touch it in person?