Acronym ...
Name ri+12{10/2} (?)
Circumradius sqrt(7)/2 = 1.322876
Vertex figure 2[4,6,10/2]
General of army x3f5o
Colonel of regiment raded
Confer
non-Grünbaumian masters:
ri  
general polytopal classes:
Wythoffian polyhedra  

Looks like a compound of a rhombicosahedron (ri) plus 12 {10/2} fitting into the dodecahedral set of pentagonal holes, and indeed vertices and {10/2}-edges both coincide by pairs.


Incidence matrix according to Dynkin symbol

x5/2x3x

.   . . | 120 |  1  1  1 |  1  1  1
--------+-----+----------+---------
x   . . |   2 | 60  *  * |  1  1  0
.   x . |   2 |  * 60  * |  1  0  1
.   . x |   2 |  *  * 60 |  0  1  1
--------+-----+----------+---------
x5/2x . |  10 |  5  5  0 | 12  *  *
x   . x |   4 |  2  0  2 |  * 30  *
.   x3x |   6 |  0  3  3 |  *  * 20

snubbed forms: s5/2s3s

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