Ductility is a characteristic of metallic minerals, which can deform horizontally and vertically under the action of external force. Under the action of external force, ions can move and rearrange, and finally lose their cohesive force, which is the fundamental reason for the ductility of metallic bond minerals. Inactive metals have good ductility, for example, rare earth metals such as gold, copper, silver, tungsten, and aluminum have good ductility. Rare Earth Ductility Testing https://rareearth.alfa-chemist....ry.com/services/duct