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Possible facets here are the 20 triangles of the comodore itself together with the 12 internal pentagons. The general naming code here is accordingly ike-#{3}-#{5}. This gives rise for exactly 13 edge-facetings with n-gonal axial rotation symmetries, where n > 2. In fact, 2 have full icosahedral symmetry, 5 have 5-fold pyramidal symmetry, 1 has 5-fold antiprismatic symmetry, 3 have 3-fold pyramidal symmetry, and 2 have 3-fold antiprismatic symmetry.
A well-known edge-faceting with just digonal symmetry (i.e. mirror symmetry) is the Johnson solid J62 (mibdi).
ike-20-0 = ike |
ike-0-12 = gad |
ike-5-3 = teddi |
ike-7-3 = scuffi |
ike-13-3 = ib |
ike-6-6-a = toif |
ike-6-6-b = tigdaf |
icosahedral | 3-fold pyramidal | 3-fold antiprismatic | ||||
ike-5-1 = peppy |
ike-5-5 = gadcone |
ike-5-7 = digdom |
ike-10-6 = igdom |
ike-15-1 = gyepip |
ike-10-2 = pap |
ike-6-2 = ifbah |
5-fold pyramidal | 5-fold antipr. | some 2-fold |
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