I want to know what kind of fossil I have.

[Alexa Guzmán]

Hola soy nueva quisiera saber que tipo de fósil tengo es entre piedra y cristal parece azúcar caramelizada

 

 

Translation:

 

Hello, I am new. I would like to know what kind of fossil I have.

It is between stone and glass, it looks like caramelized sugar

 

 

[Rockwood]

Concretion.

[Fossildude19]

Cropped, enlarged, and brightened.

 

 

Looks like a chert nodule to me. 

I see no fossil.

 

 

Me parece un nódulo de pedernal. No veo ningún fósil.

[Myrmica]

It is worth adding a few drops of vinegar to check for the presence of a carbonate (if it bubbles).  This might be travertine, i.e., a sort of limestone that is deposited around springs.  It does not look like a fossil.  

[Paleorunner]

Height from 30 to 40 ctms?

Nice and curious decorative stone.

[JohnJ]

1 hour ago, Myrmica said:

It is worth adding a few drops of vinegar to check for the presence of a carbonate (if it bubbles).  This might be travertine, i.e., a sort of limestone that is deposited around springs.  It does not look like a fossil.  

 

I also think this is some kind of calcitic speleothem.