Acronym grix
Name great rhombated hexacosachoron,
cantitruncated hexacosachoron
Cross sections
` ©`
Vertex figure
` ©`
General of army (is itself convex)
Colonel of regiment (is itself locally convex – uniform polychoral members:
 by cells: pip ti toe grix 720 120 600
)
Dihedral angles
• at {4} between pip and toe:   arccos(-sqrt[(5+2 sqrt(5))/10]) = 166.717474°
• at {6} between toe and toe:   arccos[-(1+3 sqrt(5))/8] = 164.477512°
• at {5} between pip and ti:   162°
• at {6} between ti and toe:   arccos(-sqrt[7+3 sqrt(5)]/4) = 157.761244°
Confer
Grünbaumian relatives:
2grix
decompositions:
prahi || grix
External

As abstract polytope grix is isomorphic to graggix, thereby replacing the pentagons by pentagrams, resp. replacing ti by tiggy and pip by stip.

Note that grix can be thought of as the external blend of 1 prahi + 600 tutatoes + 1200 thiddips + 720 pappips + 120 sridaties. This decomposition is described as the degenerate segmentoteron xx3xx3ox5xo&#x.

Incidence matrix according to Dynkin symbol

```x3x3x5o

. . . . | 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
--------+------+----------------+---------------------+------------
x3x . . |    6 |    3    3    0 | 1200    *    *    * |   2   0   0
x . x . |    4 |    2    0    2 |    * 3600    *    * |   1   1   0
. x3x . |    6 |    0    3    3 |    *    * 2400    * |   1   0   1
. . x5o |    5 |    0    0    5 |    *    *    * 1440 |   0   1   1
--------+------+----------------+---------------------+------------
x3x3x . ♦   24 |   12   12   12 |    4    6    4    0 | 600   *   *
x . x5o ♦   10 |    5    0   10 |    0    5    0    2 |   * 720   *
. x3x5o ♦   60 |    0   30   60 |    0    0   20   12 |   *   * 120

snubbed forms: β3x3x5o, x3β3x5o, x3x3β5o, β3β3x5o, β3x3β5o, x3β3β5o, β3β3β5o
```

```x3x3x5/4o

. . .   . | 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
----------+------+----------------+---------------------+------------
x3x .   . |    6 |    3    3    0 | 1200    *    *    * |   2   0   0
x . x   . |    4 |    2    0    2 |    * 3600    *    * |   1   1   0
. x3x   . |    6 |    0    3    3 |    *    * 2400    * |   1   0   1
. . x5/4o |    5 |    0    0    5 |    *    *    * 1440 |   0   1   1
----------+------+----------------+---------------------+------------
x3x3x   . ♦   24 |   12   12   12 |    4    6    4    0 | 600   *   *
x . x5/4o ♦   10 |    5    0   10 |    0    5    0    2 |   * 720   *
. x3x5/4o ♦   60 |    0   30   60 |    0    0   20   12 |   *   * 120
```