$2 Stone slate 3D 40 3D model by deckorator. Available on CGTrader with 36770 polys and 19520 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 2.19 MB), MAX (Autodesk 3ds Max, filesize: 1.82 MB), FBX (Autodesk FBX, filesize: 14.6 MB), TEXTURES (Textures, filesize: 6.19 MB), UNITYPACKAGE (Unity 3D, filesize: 12.8 MB), GLTF (glTF, filesize: 12.6 MB)