The principal use of gold is for the fabrication of jewellery and bullion investment. Gold has many unique metallic properties that make it valuable across many industries. For instance, its resistance to corrosion, high electrical and thermal conductivity, ductility and malleability, heat reflectivity and low toxicity. Therefore, gold is used extensively not only in jewellery but also in fabrication processes, including the manufacturing of coins and electronic components in dentistry and medicine,
Silver is a precious metal the uses of which stem from its unique collection of properties including anti-bacterial qualities, corrosion resistance, malleability, ductility and photo-sensitivity of certain silver compounds. These have contributed to its use in an increasing number of industrial applications, in addition to its traditional uses in jewellery and photography. Silver was one of the earliest metals to be used as a medium of exchange and is one of the world’s most broadly used metals, with many practical applications. Silver has a number of unique properties that make it a preferred material in several industrial applications and restrict substitution.