$10 Mossy stones tile Low-poly 3D model by td3. Available on CGTrader with 400 polys and 461 vertices. Check it out on CGHub.
MAX (Autodesk 3ds Max, filesize: 295 KB), OBJ (OBJ, filesize: 45.4 KB), FBX (Autodesk FBX, filesize: 531 KB), GLTF (glTF, filesize: 151 MB), ABC (Alembic, filesize: 79 KB), 3DS (3D Studio, filesize: 51.6 KB), TEXTURES (Textures, filesize: 186 MB)