The face of a stellated polyhedron
The faces of the great icosahedron are triangles (that form on each vertex a 5-pointed star).
This image has been realized for the exhibition Simmetria, giochi di specchi - Symmetry, playing with mirrors.
© matematita
The image belongs to the sections...:
The symmetry group of the dodecahedron (*532) (Symmetry)
Star polyhedra (3D geometry)
Further information:
http://specchi.mat.unimi.it/