AB acknowledges the support from the Alexander von Humboldt Foundation, the Generalitat de Catalunya (AGAUR grant 2018BP00190), and the Spanish Ministerio de Ciencia y Universitades (grant MDM-2017-0767). Computational resources have been provided by the Red Española de Supercomputación (projects QS-• S11. EMT-derived convex hull and coordination number differences for different shapes of 150-atom particles.