strange rock???

[rockpassion]

Hi everyone, i found this strange rock. Does anyone know what it is or if it is manmade or natural. Thanks

 

[galenrog]

Images indicate you may have an extremely worn example of a fossilized ammonite. They are very common in my part of Central Texas. Here, they are nearly all formed through limestone replacement. To authenticate the item, inquire at local colleges and universities if they are capable of identifying shell fossils.

Your rock has no indication of being worked by humans.

 

[rockpassion]

Images indicate you may have an extremely worn example of a fossilized ammonite. They are very common in my part of Central Texas. Here, they are nearly all formed through limestone replacement. To authenticate the item, inquire at local colleges and universities if they are capable of identifying shell fossils.

Your rock has no indication of being worked by humans.

Oke , do you mean that a university has to confirm if my rock has fossils in it so that we know it is limestone?

 

[galenrog]

To confirm my opinion that it is a part of a fossilized ammonite, not necessarily that it is limestone. I do not know what the replacement minerals in your rock are. I only have images to base my opinion on. In my area of Central Texas, most ammonites are found in limestone. In other locales, ammonites can be found in other sedimentary rock.

 

[galenrog]

Here is an image of fossil ammonites I pulled off the internet. Notice any similarities?