grass pebble rock Low-poly 3D model is available on CGTrader for $2. Original author: ultra3dmodels.
STL (Stereolithography, filesize: 6.01 MB), OBJ (OBJ, filesize: 7.38 MB), FBX (Autodesk FBX, filesize: 27.6 MB), JPG (JPG, filesize: 66.5 MB), C4D (Cinema 4D, filesize: 4 MB), BLEND (Blender, filesize: 73 MB)