$12 Assorted Rocks - Moss 2 Low-poly 3D model by wernie. Available on CGTrader with 9344 polys and 14016 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 320 KB), 3DS (3D Studio, filesize: 165 KB), BLEND (Blender, filesize: 474 KB), DAE (Collada, filesize: 279 KB), FBX (Autodesk FBX, filesize: 368 KB), TEXTURES (Textures, filesize: 30.9 MB)