Acronym sril
Name small rhombated heptapeton,
cantellated heptapeton
Circumradius sqrt(13/7) = 1.362770
Lace city
in approx. ASCII-art
        x3o3o3o  o3x3o3o  		-- o3x3o3o3o (rix)
                          
                          
                          
                          
x3o3o3o  u3o3o3o  x3x3o3o 		-- x3x3o3o3o (tix)
                          
                          
                          
                          
 o3x3o3o  x3x3o3o  x3o3x3o		-- x3o3x3o3o (sarx)
External
links
wikipedia  

Incidence matrix according to Dynkin symbol

x3o3x3o3o3o

. . . . . . | 105 |   2   8 |  1   8   4  12 |  4  12   6   8 |  6   8  4  2 | 4  2 1
------------+-----+---------+----------------+----------------+--------------+-------
x . . . . . |   2 | 105   * |  1   4   0   0 |  4   6   0   0 |  6   4  0  0 | 4  1 0
. . x . . . |   2 |   * 420 |  0   1   1   3 |  1   3   3   3 |  3   3  3  1 | 3  1 1
------------+-----+---------+----------------+----------------+--------------+-------
x3o . . . . |   3 |   3   0 | 35   *   *   *   4   0   0   0 |  6   0  0  0 | 4  0 0
x . x . . . |   4 |   2   2 |  * 210   *   * |  1   3   0   0 |  3   3  0  0 | 3  1 0
. o3x . . . |   3 |   0   3 |  *   * 140   * |  1   0   3   0 |  3   0  3  0 | 3  0 1
. . x3o . . |   3 |   0   3 |  *   *   * 420 |  0   1   1   2 |  1   2  2  1 | 2  1 1
------------+-----+---------+----------------+----------------+--------------+-------
x3o3x . . .   12 |  12  12 |  4   6   4   0 | 35   *   *   * |  3   0  0  0 | 3  0 0
x . x3o . .    6 |   3   6 |  0   3   0   2 |  * 210   *   * |  1   2  0  0 | 2  1 0
. o3x3o . .    6 |   0  12 |  0   0   4   4 |  *   * 105   * |  1   0  2  0 | 2  0 1
. . x3o3o .    4 |   0   6 |  0   0   0   4 |  *   *   * 210 |  0   1  1  1 | 1  1 1
------------+-----+---------+----------------+----------------+--------------+-------
x3o3x3o . .   30 |  30  60 | 10  30  20  20 |  5  10   5   0 | 21   *  *  * | 2  0 0
x . x3o3o .    8 |   4  12 |  0   6   0   8 |  0   4   0   2 |  * 105  *  * | 1  1 0
. o3x3o3o .   10 |   0  30 |  0   0  10  20 |  0   0   5   5 |  *   * 42  * | 1  0 1
. . x3o3o3o    5 |   0  10 |  0   0   0  10 |  0   0   0   5 |  *   *  * 42 | 0  1 1
------------+-----+---------+----------------+----------------+--------------+-------
x3o3x3o3o .   60 |  60 180 | 20  90  60 120 | 15  60  30  30 |  6  15  6  0 | 7  * *
x . x3o3o3o   10 |   5  20 |  0  10   0  20 |  0  10   0  10 |  0   5  0  2 | * 21 *
. o3x3o3o3o   15 |   0  60 |  0   0  20  60 |  0   0  15  30 |  0   0  6  6 | *  * 7

oxx3xxo3oox3ooo3ooo&#xt   → all heights = sqrt(7/12) = 0.763763
(rix || pseudo tix || sarx)

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