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Sterling silver is an alloy composed by weight of 92.5% silver and 7.5% other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. Tiffany & Co. pitcher ( c. 1871 ) having paneled sides and repoussé design with shells, scrolls and flowers; top edge is repousse arrowhead leaf design
4 Etymology. 5 History. ... Silver is a chemical element; ... Western concert flutes are usually plated with or made out of sterling silver; [112] ...
In 1158, a new coinage was introduced by King Henry II (known as the Tealby penny), with a Tower Pound (5,400 grains, 349.9 g) of 92.5% silver minted into 240 pennies, each penny containing 20.82 grains (1.349 g) of fine silver. [46] Called sterling silver, the alloy is harder than the 99.9% fine silver that was traditionally used, and sterling ...
Sterling silver is the traditional material from which good quality cutlery is made. Historically, silver had the advantage over other metals of being less chemically reactive. Chemical reactions between certain foods and the cutlery metal can lead to unpleasant tastes.
At the time of the 1702 London Mint Assay by Sir Isaac Newton, the silver content of British coinage was defined to be one troy ounce of sterling silver for 62 pence, or 502 mg per penny. Therefore, the value of the monetary pound sterling was equivalent to only 3.87 troy ounces (120 g) of sterling silver. This was the standard from 1601 to 1816.
Some jewellery is plated to give it a shiny, reflective look or to achieve a desired colour. Sterling silver jewellery may be plated with a thin layer of 0.999 fine silver (a process known as flashing) or plated with rhodium or gold. Base metal costume jewellery may also be plated with silver, gold, or rhodium for a more attractive finish.
There are three basic techniques that may be used to attach granules to a metal surface: hard soldering, fusing and colloidal soldering. The metals used in granulation are usually gold and/or silver alloys of high purity – alloys below 18 kt. gold and sterling silver being unsuitable. With each technique, the process begins with the making of ...
For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass.