Rhombic triacontahedra, due to their multiple symmetries, make excellent building blocks to make shapes resembling other polyhedra. This icosahedral cluster is far from being the only such possible “cluster” polyhedron made entirely of rhombic triacontahedra.

This .gif was created with Stella 4d, software you may find here: http://www.software3d.com/Stella.php.