925 sterling silver jewelry
9/13/2017 4:24:44 AM Viewed 155
What is Silver?
Silver is a precious metal and, much like gold, is too fine to be utilized in its pure form.
What does 925 silver mean?
To make silver durable enough for use in jewelry, pure silver, which has a .999 fineness (99.9%), is often alloyed with small quantities of copper (7.5%). The copper is added to strengthen the silver and the resulting product is .925 sterling silver (92.5%). Acceptable quality marks for sterling silver include: sterling, sterling silver, ster, and .925
What is sterling silver?
Sterling silver is an alloy of silver, which consists of 92.5 percent silver and 7.5 percent copper.
Why does silver tarnish?
Tarnish is a dulling which naturally occurs when silver reacts with sulfur or hydrogen sulfide in the air. Most people think silver tarnishes due to oxidation. But, chemically speaking, silver is not very reactive—it does not react with oxygen or water at normal temperatures. However, other metals in the alloy, usually copper, may react with oxygen in the air.
How do you care for silver jewelry?
Care should be taken to avoid exposing your silver to household chemicals when cleaning with bleach or ammonia, or when swimming in chlorinated water, as these chemicals can damage silver.
How to clean silver jewelry?
The best way to keep your silver jewelry clean is by wearing it often. However, humidity and storing the silver can tarnish the piece, also known as oxidation, which will give the silver a darkish black color. Tarnish is most easily removed when it first becomes visible.