A polyhedron with 48 faces, created by placing a pyramid on each face of an octahedron.
From 'hexakis' (Greek 'hex-' meaning six, used as 'sixfold') + 'octahedron' (eight-faced solid). The 'kis' prefix indicates multiplication of faces.
Crystal miners love these shapes because some natural minerals like magnetite grow into hexakisoctahedra—it's like nature solving a 3D geometry puzzle perfectly!
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