Acronym	graghi
Name	great rhombated grand hecatonicosachoron
Cross sections	©
Circumradius	sqrt[14+3 sqrt(5)] = 4.550627
Colonel of regiment	(is itself locally convex – uniform polychoral members: by cells: grid stip tiggy graghi 120 720 120 )
Face vector	7200, 14400, 8160, 960
Confer	general polytopal classes: Wythoffian polychora
External links

As abstract polytope graghi is isomorphic to gaqrigashi, thereby replacing the decagons by decagrams and the pentagrams by pentagons, resp. replacing the grid by gaquatid, the tiggy by ti, and the stip by pip.

Incidence matrix according to Dynkin symbol

x5x3x5/2o

. . .   . | 7200 |    1    1    2 |   1    2    2    1 |   2   1   1
----------+------+----------------+--------------------+------------
x . .   . |    2 | 3600    *    * |   1    2    0    0 |   2   1   0
. x .   . |    2 |    * 3600    * |   1    0    2    0 |   2   0   1
. . x   . |    2 |    *    * 7200 |   0    1    1    1 |   1   1   1
----------+------+----------------+--------------------+------------
x5x .   . |   10 |    5    5    0 | 720    *    *    * |   2   0   0
x . x   . |    4 |    2    0    2 |   * 3600    *    * |   1   1   0
. x3x   . |    6 |    0    3    3 |   *    * 2400    * |   1   0   1
. . x5/2o |    5 |    0    0    5 |   *    *    * 1440 |   0   1   1
----------+------+----------------+--------------------+------------
x5x3x   . ♦  120 |   60   60   60 |  12   30   20    0 | 120   *   *
x . x5/2o ♦   10 |    5    0   10 |   0    5    0    2 |   * 720   *
. x3x5/2o ♦   60 |    0   30   60 |   0    0   20   12 |   *   * 120

x5x3x5/3o

. . .   . | 7200 |    1    1    2 |   1    2    2    1 |   2   1   1
----------+------+----------------+--------------------+------------
x . .   . |    2 | 3600    *    * |   1    2    0    0 |   2   1   0
. x .   . |    2 |    * 3600    * |   1    0    2    0 |   2   0   1
. . x   . |    2 |    *    * 7200 |   0    1    1    1 |   1   1   1
----------+------+----------------+--------------------+------------
x5x .   . |   10 |    5    5    0 | 720    *    *    * |   2   0   0
x . x   . |    4 |    2    0    2 |   * 3600    *    * |   1   1   0
. x3x   . |    6 |    0    3    3 |   *    * 2400    * |   1   0   1
. . x5/3o |    5 |    0    0    5 |   *    *    * 1440 |   0   1   1
----------+------+----------------+--------------------+------------
x5x3x   . ♦  120 |   60   60   60 |  12   30   20    0 | 120   *   *
x . x5/3o ♦   10 |    5    0   10 |   0    5    0    2 |   * 720   *
. x3x5/3o ♦   60 |    0   30   60 |   0    0   20   12 |   *   * 120