One more Truss model of perovskite (or fluorite/antifluorite) structure

I made another truss model of perovskite structure with octahedra constructed by yellow and blue bugle beads.

Truss model of perovskite (or fluorite/antifluorite) structure

Spinel structure

Truss models of cubic and hexagonal closest packings

I made two more bead models of two-layer cuboctahedron and twisted cuboctahedron (anticuboctahedron) to illustrate the vector equilibrium of Buckminster Fuller. Through these two models, the connection to the cubic and hexagonal closest packings can also be visualized more easily.

Perovskite, 4 stella octangula