Check out ground pit rock stone 3D model on CGTrader for $19. High-quality mesh by onemodelstudio: 150446 polys, 75604 vertices. PBR, Textured, UV Mapped.
FBX (Autodesk FBX, filesize: 79.8 MB), OTHER (Other, filesize: 23.1 MB), TEXTURES (Textures, filesize: 59.6 MB), JPG (JPG, filesize: 59.6 MB)