History of Electrum. This gold-silver alloy has a long history of being used by humans. It was used for different purposes since third millennium BC. However, the variation in the gold and silver contents of this alloy made it difficult to decide the value of each coin.
Malleability is the ability of materials to deform easily under compressive stress. This can be often characterized as materials ability to form thin sheets by hammering or rolling. On the other hand, Ductility is the ability of materials to deform easily under tensile stress.
Malleability is the quality of something that can be shaped into something else without breaking, like the malleability of clay. Malleability â also called plasticity â has to do with whether something can be molded. Clay (or Play-Doh) is the best example of something with high malleability; it can be sculpted into almost anything, so it's very malleable. A cinder block has no malleability at all; it can't be shaped into anything.