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In geometry, the stellated truncated hexahedron (or quasitruncated hexahedron) is a uniform star polyhedron, indexed as U19. It is represented by Schläfli symbol t{4/3,3}, and Coxeter-Dynkin diagram, . It is sometimes called quasitruncated hexahedron because it is related to the truncated cube, , except that the square faces become inverted into {8/3} octagrams.
Stellated truncated hexahedron is not a true stellation of the truncated hexahedron; its convex 'core' is not a uniform polyhedron.
Related polyhedra
It shares the vertex arrangement with three other uniform polyhedra: the convex rhombicuboctahedron, the small rhombihexahedron, and the small cubicuboctahedron.
References
Stellated truncated hexahedron Wikipedia(Text) CC BY-SA