Talk:Icosahedral bipyramid

One of the 5 convex 4-deltatopes
It is one of the 5 convex 4-deltatopes, as mentioned here, the other four being three of the regular 4-polytopes and the tetrahedral bipyramid. This one and 600-cell are the only two among the 5 that don't have a higher-dimensional analog. 129.104.241.25 (talk) 01:08, 12 October 2023 (UTC)

The symmetry group
It should be noted that the symmetry group of the icosahedral bipyramid is the direct product of the symmetry group of the icosahedral (A5×C2 = SmallGroup(120,35)) and the cyclic group of order 2, being isomorphic to A5×C2×C2 = SmallGroup(240,190). 129.104.241.25 (talk) 08:30, 12 October 2023 (UTC)