Silver is a very ductile and malleable metal with a more brilliant metallic than gold. Its hardness is only about 2.5 to 3 on the Mohs scale, and its density is about 54% that of pure gold. Therefore, silver is usually combined with other metals to improve its hardness and durability. The most popular alloy consists of 92.5% silver and 7.5% copper, which is called "Sterling", "S925" or "Ag925". Elegant and fashionable silver jewellery comes in a variety of styles suitable for different groups of people. Apart from jewellery, silver is also used to make coins, silverwares and decorative articles.