Foot silver is silver with a silver content of more than 99%, with high purity, very soft texture and easy to break. Moreover, due to the high purity of foot silver, it is very sensitive to the change of sweat and is easily affected by the outside world to turn black. When designing the foot silver, it is generally made very thick, and the style is mostly plain and pure, full of traditional and classical atmosphere.
In international standards, sufficient silver refers to silver with a silver content of not less than 990. Generally processed into bracelets, pendants, longevity locks and other silver ornaments. Foot silver jewelry usually has several signs, one is S99, the other is S990, and S is the initials of the English word Silver, which stands for silver, with the contents of 999, 990 and 925.
Zuyin history
In ancient times, people knew about silver. Like gold, silver is a precious metal with a long history of application, which has a history of more than 4,000 years. Because of its unique excellent characteristics, silver is endowed with monetary value and decorative value. Silvery white, soft and bright, it is a favorite ornament of ethnic minorities, Buddhism and Islam.
Silver jewelry is also the first choice gift for newborn babies given by people of all ethnic groups in China. Recently, under the influence of the retro trend of thought, Europeans and Americans are wearing light blue turquoise jewelry inlaid with silver, which is easy to oxidize and turn black, bringing people infinite beautiful reverie about ancient civilization. In China, sterling silver jewelry has gradually become the favorite of modern fashionable women, and silver is one of the metals known since ancient times.
Refer to the above content: Baidu Encyclopedia-Foot Silver