There are two main differences between raw silver, cooked silver, foot silver:
First, the difference in silver content.1, raw silver that is natural silver, China's ancient known amber gold, is a natural gold and silver alloy, containing silver about 20%.
2, cooked silver that is pure silver, that is, the content is close to 100% of the metal silver. Life in the "pure silver" generally refers to the content of 99.99% silver or content of 92.5% of 925 pure silver.
3, silver refers to the silver content of not less than 990 kilograms called silver.
2, the difference in use.1, raw silver is mostly and gold, mercury, antimony, copper or platinum into an alloy.
2, cooked silver is often used to make extremely sensitive physical instrument components, a variety of automated devices, rockets, submarines, computers, nuclear devices and communication systems, all of these devices in a large number of contact points are made of silver.
3, foot silver is generally processed into bracelets, pendants, long life locks and other silver jewelry, foot silver jewelry usually have a few kinds of signs, one is S99, a S990.
Expanded:
Silver in the application of craft jewelry:
Silver has an attractive white luster, high chemical stability and collection of ornamental value, favored by the people, so there is a "woman's metal" of the name!
Silver has an attractive white luster, high chemical stability and collection of ornamental value, favored by people, so it is known as the "woman's metal", widely used as jewelry, decorations, silverware, tableware, gifts, medals and coins.
Silver jewelry has a broad market in developing countries, silver tableware is popular with families.
Silver commemorative coins are beautifully designed, issued in small quantities, with value-added function, by the coin collectors and coin investors, the 20th century 90s only minting silver each year to stay in the 1000 ~ 1500t up and down, accounting for the consumption of silver about 5%.
Baidu Encyclopedia - Silver (chemical element)
Baidu Encyclopedia - Sterling Silver
Baidu Encyclopedia - Foot Silver