Augmenting the great truncated cuboctahedron
The great truncated cuboctahedron, vertex figure (8/3,6,4)
Each hexagonal face of the great truncated cuboctahedron can be augmented with a hexagonal antiprism. The 6 in the vertex figure is replaced by a (3,3,3) The original vertex figures become (8/3,3,3,3,4) with new vertices of (6,3,3,3). All vertices lie on the convex hull. (Note: I am classing this as an augmentation rather than an excavation as the hexagons are augmented away from the centroid of the vertex figure. Great Stella would call this an an excavation as it is toward the centre of the polyhedron).
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