Acronym	snid
TOCID symbol	sID
Name	snub dodecahedron, snub icosidodecahedron
	© ©
Circumradius	sqrt[162+42 sqrt(5)+6 cbrt[20448+9140 sqrt(5)+12 sqrt(7137+3192 sqrt(5))]+6 cbrt[20448+9140 sqrt(5)-12 sqrt(7137+3192 sqrt(5))]]/12 = 2.155837
Vertex figure	[34,5]
Snub derivation
General of army	(is itself convex)
Colonel of regiment	(is itself locally convex – no other uniform polyhedral members)
Dihedral angles	between {3} and {3}:   arccos([cbrt(u+v)+cbrt(u-v)+1/3]/3) = 164.175366° between {3} and {5}:   ≈152.930° where u = -2 (49+27 sqrt(5))/27 v = 2 sqrt[2 (93+49 sqrt(5))/3]/3
Face vector	60, 150, 92
Confer	compounds: dissid
External links

As abstract polytope snid is isomorphic to gosid, gisid, and girsid, thereby replacing prograde icosahedral triangles and pentagons respectively by prograde icosahedral triangles and (prograde) pentagrams, by prograde icosahedral triangles and retrograde pentagrams, by retrrograde icosahedral triangles and retrograde pentagrams.

Incidence matrix according to Dynkin symbol

s3s5s

demi( . . . ) | 60 |  1  2  2 |  1  1  3
--------------+----+----------+---------
      s 2 s   ♦  2 | 30  *  * |  0  0  2
sefa( s3s . ) |  2 |  * 60  * |  1  0  1
sefa( . s5s ) |  2 |  *  * 60 |  0  1  1
--------------+----+----------+---------
      s3s .   ♦  3 |  0  3  0 | 20  *  *
      . s5s   ♦  5 |  0  0  5 |  * 12  *
sefa( s3s5s ) |  3 |  1  1  1 |  *  * 60

starting figure: x3x5x