Acronym tratut
Name triangle truncated-tetrahedron duoprism
Circumradius sqrt(41/24) = 1.307032
Confer
more general:
n,tut-dip  
general polytopal classes:
segmentotera  

Incidence matrix according to Dynkin symbol

x3o x3x3o

. . . . . | 36 |  2  1  2 |  1  2  4  2  1 | 1  2  4  2 1 | 2 1 2
----------+----+----------+----------------+--------------+------
x . . . . |  2 | 36  *  * |  1  1  2  0  0 | 1  2  2  1 0 | 2 1 1
. . x . . |  2 |  * 18  * |  0  2  0  2  0 | 1  0  4  0 1 | 2 0 2
. . . x . |  2 |  *  * 36 |  0  0  2  1  1 | 0  1  2  2 1 | 1 1 2
----------+----+----------+----------------+--------------+------
x3o . . . |  3 |  3  0  0 | 12  *  *  *  * | 1  2  0  0 0 | 2 1 0
x . x . . |  4 |  2  2  0 |  * 18  *  *  * | 1  0  2  0 0 | 2 0 1
x . . x . |  4 |  2  0  2 |  *  * 36  *  * | 0  1  1  1 0 | 1 1 1
. . x3x . |  6 |  0  3  3 |  *  *  * 12  * | 0  0  2  0 1 | 1 0 2
. . . x3o |  3 |  0  0  3 |  *  *  *  * 12 | 0  0  0  2 1 | 0 1 2
----------+----+----------+----------------+--------------+------
x3o x . .   6 |  6  3  0 |  2  3  0  0  0 | 6  *  *  * * | 2 0 0
x3o . x .   6 |  6  0  3 |  2  0  3  0  0 | * 12  *  * * | 1 1 0
x . x3x .  12 |  6  6  6 |  0  3  3  2  0 | *  * 12  * * | 1 0 1
x . . x3o   6 |  3  0  6 |  0  0  3  0  2 | *  *  * 12 * | 0 1 1
. . x3x3o  12 |  0  6 12 |  0  0  0  4  4 | *  *  *  * 3 | 0 0 2
----------+----+----------+----------------+--------------+------
x3o x3x .  18 | 18  9  9 |  6  9  9  3  0 | 3  3  3  0 0 | 4 * *
x3o . x3o   9 |  9  0  9 |  3  0  9  0  3 | 0  3  0  3 0 | * 4 *
x . x3x3o  24 | 12 12 24 |  0  6 12  8  8 | 0  0  4  4 2 | * * 3

ox oo3xx3xx&#x   → height = sqrt(3)/2 = 0.866025
(tut || tuttip)

o. o.3o.3o.    | 12  * |  2 1  2  0  0  0 | 1 2  1  4  2  0 0 0 0 | 1  2 1 2 4 0 0 0 | 1 2 2 0
.o .o3.o3.o    |  * 24 |  0 0  1  1  2  1 | 0 0  1  2  1  2 1 1 2 | 0  2 1 1 2 1 2 1 | 1 2 1 1
---------------+-------+------------------+-----------------------+------------------+--------
.. .. x. ..    |  2  0 | 12 *  *  *  *  * | 1 1  0  2  0  0 0 0 0 | 1  1 0 2 2 0 0 0 | 1 1 2 0
.. .. .. x.    |  2  0 |  * 6  *  *  *  * | 0 2  0  0  2  0 0 0 0 | 1  0 1 0 4 0 0 0 | 0 2 2 0
oo oo3oo3oo&#x |  1  1 |  * * 24  *  *  * | 0 0  1  2  1  0 0 0 0 | 0  2 1 1 2 0 0 0 | 1 2 1 0
.x .. .. ..    |  0  2 |  * *  * 12  *  * | 0 0  1  0  0  2 1 0 0 | 0  2 1 0 0 1 2 0 | 1 2 0 1
.. .. .x ..    |  0  2 |  * *  *  * 24  * | 0 0  0  1  0  1 0 1 1 | 0  1 0 1 1 1 1 1 | 1 1 1 1
.. .. .. .x    |  0  2 |  * *  *  *  * 12 | 0 0  0  0  1  0 1 0 2 | 0  0 1 0 2 0 2 1 | 0 2 1 1
---------------+-------+------------------+-----------------------+------------------+--------
.. o.3x. ..    |  3  0 |  3 0  0  0  0  0 | 4 *  *  *  *  * * * * | 1  0 0 2 0 0 0 0 | 1 0 2 0
.. .. x.3x.    |  6  0 |  3 3  0  0  0  0 | * 4  *  *  *  * * * * | 1  0 0 0 2 0 0 0 | 0 1 2 0
ox .. .. ..&#x |  1  2 |  0 0  2  1  0  0 | * * 12  *  *  * * * * | 0  2 1 0 0 0 0 0 | 1 2 0 0
.. .. xx ..&#x |  2  2 |  1 0  2  0  1  0 | * *  * 24  *  * * * * | 0  1 0 1 1 0 0 0 | 1 1 1 0
.. .. .. xx&#x |  2  2 |  0 1  2  0  0  1 | * *  *  * 12  * * * * | 0  0 1 0 2 0 0 0 | 0 2 1 0
.x .. .x ..    |  0  4 |  0 0  0  2  2  0 | * *  *  *  * 12 * * * | 0  1 0 0 0 1 1 0 | 1 1 0 1
.x .. .. .x    |  0  4 |  0 0  0  2  0  2 | * *  *  *  *  * 6 * * | 0  0 1 0 0 0 2 0 | 0 2 0 1
.. .o3.x ..    |  0  3 |  0 0  0  0  3  0 | * *  *  *  *  * * 8 * | 0  0 0 1 0 1 0 1 | 1 0 1 1
.. .. .x3.x    |  0  6 |  0 0  0  0  3  3 | * *  *  *  *  * * * 8 | 0  0 0 0 1 0 1 1 | 0 1 1 1
---------------+-------+------------------+-----------------------+------------------+--------
.. o.3x.3x.     12  0 | 12 6  0  0  0  0 | 4 4  0  0  0  0 0 0 0 | 1  * * * * * * * | 0 0 2 0
ox .. xx ..&#x   2  4 |  1 0  4  2  2  0 | 0 0  2  2  0  1 0 0 0 | * 12 * * * * * * | 1 1 0 0
ox .. .. xx&#x   2  4 |  0 1  4  2  0  2 | 0 0  2  0  2  0 1 0 0 | *  * 6 * * * * * | 0 2 0 0
.. oo3xx ..&#x   3  3 |  3 0  3  0  3  0 | 1 0  0  3  0  0 0 1 0 | *  * * 8 * * * * | 1 0 1 0
.. .. xx3xx&#x   6  6 |  3 3  6  0  3  3 | 0 1  0  3  3  0 0 0 1 | *  * * * 8 * * * | 0 1 1 0
.x .o3.x ..      0  6 |  0 0  0  3  6  0 | 0 0  0  0  0  3 0 2 0 | *  * * * * 4 * * | 1 0 0 1
.x .. .x3.x      0 12 |  0 0  0  6  6  6 | 0 0  0  0  0  3 3 0 2 | *  * * * * * 4 * | 0 1 0 1
.. .o3.x3.x      0 12 |  0 0  0  0 12  6 | 0 0  0  0  0  0 0 4 4 | *  * * * * * * 2 | 0 0 1 1
---------------+-------+------------------+-----------------------+------------------+--------
ox oo3xx ..&#x   3  6 |  3 0  6  3  6  0 | 1 0  3  6  0  3 0 2 0 | 0  3 0 2 0 1 0 0 | 4 * * *
ox .. xx3xx&#x   6 12 |  3 3 12  6  6  6 | 0 1  6  6  6  3 3 0 2 | 0  3 3 0 2 0 1 0 | * 4 * *
.. oo3xx3xx&#x  12 12 | 12 6 12  0 12  6 | 4 4  0 12  6  0 0 4 4 | 1  0 0 4 4 0 0 1 | * * 2 *
.x .o3.x3.x      0 24 |  0 0  0 12 24 12 | 0 0  0  0  0 12 6 8 8 | 0  0 0 0 0 4 4 2 | * * * 1

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