Acronym	snu
Name	snubihedron, compound of 6 tet (but not sis)
	© ©
Circumradius	sqrt(3/8) = 0.612372
Inradius	1/sqrt(24) = 0.204124
Vertex figure	[33]
General of army	x3w4o
Colonel of regiment	(is itself locally convex)
Dihedral angles (at margins)	between {3} and {3}:   arccos(1/3) = 70.528779°
Confer	sis   so   rah
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This compound is a special (and thus rigid) case of sis. It can be vertex-inscribed into rah in the same way as sis (with full rotational freedom) can be vertex inscribed into risdoh.

By coincidence, snu is nothing but a 3-so-compound (given below as type B).

Incidence matrix

(Type A)

 24 |  1  2 |  3 || 1
----+-------+----++--
  2 | 12  * |  1 || 1
  2 |  * 24 |  2 || 1
----+-------+----++--
  3 |  1  2 | 24 || 1
----+-------+----++--
♦ 4 |  2  4 |  4 || 6

(Type B)

 24 |  1  2 |  3 || 1
----+-------+----++--
  2 | 12  * |  1 || 1
  2 |  * 24 |  2 || 1
----+-------+----++--
  3 |  1  2 | 24 || 1
----+-------+----++--
♦ 8 |  4  8 |  8 || 3