There are significant differences between snowflake silver and 990 and 999 silver in terms of meaning, silver content and use. First of all, snowflake silver originated from ancient poetry, is a folk on the silver of a common name, rather than the official name, mainly used for currency transactions. While 990 and 999 silver specifically refers to the higher silver content of pure silver, 990 silver silver content of at least 990%, 999 silver (thousand silver) is at least 99.9% purity, and may even reach 99.95%.
In terms of silver content, the standard of snowflake silver is not clear, the official "grain silver" standard of the Qing Dynasty is 93.5374%, while the 990 and 999 silver have a clear purity standard. 999 silver is more pure, more suitable for making jewelry, because it is not easy to wear and oxidation, but 990 silver due to its processing costs and hardness problems, it is less used for jewelry making.
Usage-wise, snowflake silver is mainly used in the circulation of ancient currencies, while 990 and 999 silver are more often used for decorative and industrial applications, such as making contact points for electronic devices, photographic materials, catalysts, etc., as well as in medical and antibacterial fields.
In addition, the purity and high purity versions of silver have been recognized for their unique physical and chemical properties, such as excellent electrical conductivity and antimicrobial properties, which have enabled them to play an important role in modern science and technology and in the fields of life, such as electronic devices, medical equipment, and decorative items. However, prolonged exposure to silver may also bring about health problems and needs to be handled with care.
In short, snowflake silver, 990 silver and 999 silver have their own characteristics in terms of purity, application and historical background, and the choice needs to be differentiated according to the actual needs and uses.