It's a rock. What's special about it? Well, the voronoi texture subdivision surface modifier has not been applied, so you can easily modify it non destructively in edit mode to create as many different rocks as you need.

No attribution required blah blah blah, it's a rock, I don't need to get credited for it.
I made it following this tutorial:
https://www.youtube.com/watch?v=4EqLyGsu3AA

The texture is from ambientcg.