Acronym	snip / snad
Name	s3s3s3s, snub pentachoron / snub decachoron, non-uniform alternation of gippid
Net	©
Circumradius	...
Face vector	60, 270, 300, 90
Confer	general polytopal classes: isogonal
External links

No uniform realisation is possible, as can be seen from the vertex figure. Accordingly this describes a variety of polychora, depending on applied edge sizes. J. Bowers distinguishes in his acronyms between the only pennic symmetric cases (snip) and the fully decaic symmetric ones (snad).

Incidence matrix according to Dynkin symbol

s3s3s3s

demi( . . . .  ) | 60 |  1  1  1  2  2  2 |  1  1  1  3  3  3  3 | 1  1  1 1  4
-----------------+----+-------------------+----------------------+-------------
      s 2 s .    |  2 | 30  *  *  *  *  * |  0  0  0  2  0  2  0 | 1  0  1 0  2
      s . . s2*a |  2 |  * 30  *  *  *  * |  0  0  0  0  2  2  0 | 0  1  1 0  2
      . s 2 s    |  2 |  *  * 30  *  *  * |  0  0  0  0  2  0  2 | 0  1  0 1  2
sefa( s3s . .  ) |  2 |  *  *  * 60  *  * |  1  0  0  1  1  0  0 | 1  1  0 0  1
sefa( . s3s .  ) |  2 |  *  *  *  * 60  * |  0  1  0  1  0  0  1 | 1  0  0 1  1
sefa( . . s3s  ) |  2 |  *  *  *  *  * 60 |  0  0  1  0  0  1  1 | 0  0  1 1  1
-----------------+----+-------------------+----------------------+-------------
      s3s . .    ♦  3 |  0  0  0  3  0  0 | 20  *  *  *  *  *  * | 1  1  0 0  0
      . s3s .    ♦  3 |  0  0  0  0  3  0 |  * 20  *  *  *  *  * | 1  0  0 1  0
      . . s3s    ♦  3 |  0  0  0  0  0  3 |  *  * 20  *  *  *  * | 0  0  1 1  0
sefa( s3s3s .  ) |  3 |  1  0  0  1  1  0 |  *  *  * 60  *  *  * | 1  0  0 0  1
sefa( s3s 2 s  ) |  3 |  0  1  1  1  0  0 |  *  *  *  * 60  *  * | 0  1  0 0  1
sefa( s 2 s3s  ) |  3 |  1  1  0  0  0  1 |  *  *  *  *  * 60  * | 0  0  1 0  1
sefa( . s3s3s  ) |  3 |  0  0  1  0  1  1 |  *  *  *  *  *  * 60 | 0  0  0 1  1
-----------------+----+-------------------+----------------------+-------------
      s3s3s .    ♦ 12 |  6  0  0 12 12  0 |  4  4  0 12  0  0  0 | 5  *  * *  *
      s3s 2 s    ♦  6 |  0  3  3  6  0  0 |  2  0  0  0  6  0  0 | * 10  * *  *
      s 2 s3s    ♦  6 |  3  3  0  0  0  6 |  0  0  2  0  0  6  0 | *  * 10 *  *
      . s3s3s    ♦ 12 |  0  0  6  0 12 12 |  0  4  4  0  0  0 12 | *  *  * 5  *
sefa( s3s3s3s  ) ♦  4 |  1  1  1  1  1  1 |  0  0  0  1  1  1  1 | *  *  * * 60

or
demi( . . . . )   | 60 |  2  1   4  2 |  2  1   6   6 |  2  2  4
------------------+----+--------------+---------------+---------
      s 2 s .   & |  2 | 60  *   *  * |  0  0   2   2 |  1  1  1
      s . . s2*a  |  2 |  * 30   *  * |  0  0   0   4 |  0  2  2
sefa( s3s . . ) & |  2 |  *  * 120  * |  1  0   1   1 |  1  1  1
sefa( . s3s . )   |  2 |  *  *   * 60 |  0  1   2   0 |  2  0  1
------------------+----+--------------+---------------+---------
      s3s . .   & ♦  3 |  0  0   3  0 | 40  *   *   * |  1  1  0
      . s3s .     ♦  3 |  0  0   0  3 |  * 20   *   * |  2  0  0
sefa( s3s3s . ) & |  3 |  1  0   1  1 |  *  * 120   * |  1  0  1
sefa( s3s 2 s ) & |  3 |  1  1   1  0 |  *  *   * 120 |  0  1  1
------------------+----+--------------+---------------+---------
      s3s3s .   & ♦ 12 |  6  0  12 12 |  4  4  12   0 | 10  *  *
      s3s 2 s   & ♦  6 |  3  3   6  0 |  2  0   0   6 |  * 20  *
sefa( s3s3s3s )   ♦  4 |  2  1   2  1 |  0  0   2   2 |  *  * 60

starting figure: x3x3x3x