Acronym ...
Name 2ex+fix (?)
Circumradius (1+sqrt(5))/2 = 1.618034
General of army ex
Colonel of regiment ex
Confer
non-Grünbaumian masters:
ex   fix  
Grünbaumian relatives:
ex+fix   2ex   3ex+fix   3ex+2fix+gaghi  

Looks like a compound of a double cover of an exacosachoron (ex) with an additional faceted exacosachoron (fix).


Incidence matrix according to Dynkin symbol

β3o3o5o

both( . . . . ) | 120    60 |   30   60 |  20  12
----------------+-----+------+-----------+--------
sefa( β3o . . ) |   2 | 3600 |    1    2 |   2   1
----------------+-----+------+-----------+--------
      β3o . .      3 |    3 | 1200    * |   2   0
sefa( β3o3o . ) |   3 |    3 |    * 2400 |   1   1
----------------+-----+------+-----------+--------
      β3o3o .      4 |   12 |    4    4 | 600   *
sefa( β3o3o5o )   12 |   30 |    0   20 |   * 120

starting figure: x3o3o5o

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