Acronym	grothat (old: othat)
Name	great rhombitrihexagonal tiling, omnitruncated trihexagonal tiling
	©
Vertex figure	[4,6,12]
External links

As abstract polytope othat is isomorphic to quitothit, thereby replacing dodecagons by dodecagrams and prograde hexagons by retrograde ones.

Incidence matrix according to Dynkin symbol

x3x6x   (N → ∞)

. . . | 12N |  1  1  1 |  1  1 1
------+-----+----------+--------
x . . |   2 | 6N  *  * |  1  1 0
. x . |   2 |  * 6N  * |  1  0 1
. . x |   2 |  *  * 6N |  0  1 1
------+-----+----------+--------
x3x . |   6 |  3  3  0 | 2N  * *
x . x |   4 |  2  0  2 |  * 3N *
. x6x |  12 |  0  6  6 |  *  * N

snubbed forms: β3x6x, x3β6x, x3x6s, s3s6x, x3β6β, s3s6s