Compound of two great retrosnub icosidodecahedra

Compound of two great retrosnub icosidodecahedra
Type	Uniform compound
Index	UC72
Polyhedra	2 great retrosnub icosidodecahedra
Faces	40+120 triangles, 24 pentagrams
Edges	300
Vertices	120
Symmetry group	icosahedral (Ih)
Subgroup restricting to one constituent	chiral icosahedral (I)

This uniform polyhedron compound is a composition of the 2 enantiomers of the great retrosnub icosidodecahedron.

References

• Skilling, John (1976), "Uniform Compounds of Uniform Polyhedra", Mathematical Proceedings of the Cambridge Philosophical Society 79 (3): 447–457, doi:10.1017/S0305004100052440, MR0397554 .

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