u/IMurdockI

Got this one from a thrift store, so I can’t provide geographical details.

What i can tell is it’s quite hard and hard to scratch.

I originally thought it to be a form of serpentine but the whole mass is serpentine then, the inside and outside of the specimen.

Any additional information is welcome.

Thanks in advance!

I wonder if this little fossil is known as a coral disc fossil or something else entirely.

Im up for second opinions, thanks in advance!