Because the Silver that turns black is not real.
"925 CID" stamped on jewelry indicates that the piece is made of sterling silver, which is 92.5% silver and 7.5% other metals. The "CID" is a marking used by some manufacturers to identify the silver content of the jewelry.
Most likely, the silver jewelry that you speak of is not in fact, 100% silver. It's probably only coated/dipped in silver. The silver is wearing away (long term-use, exposure to chemicals (including perfume!)), and exposing the non-silver metal underneath (probably a copper or nickel compound).
Silver metal is typically unreactive with oxygen due to a protective layer of silver oxide on its surface. However, silver jewelry can tarnish when exposed to certain substances in the environment like sulfur-containing compounds, which react with the silver to form silver sulfide, causing the jewelry to appear dull or discolored.
Some qualities of silver include its luster, malleability, and conductivity. Silver is known for its shiny appearance, ability to be easily shaped into jewelry or coins, and its excellent thermal and electrical conductivity.
Gold plated over sterling silver is not necessarily better than sterling silver. Gold plating can wear off over time, revealing the silver underneath. However, some people prefer the aesthetic of gold plated jewelry. Ultimately, it depends on personal preference and how well you take care of your jewelry.
It is the nickel in some silver jewelry that reacts with your body chemistry to turn your skin and the jewelry black. .925 Sterling Silver, such as that offered by Tiffany and Silpada, contains no nickel. .925 sterling silver is 92.5 pure silver, with only 6.5% copper added for stablity.
some jewelry and your face
The important thing to remember about a masquerade ball is your mask! A beautiful costume is important (formal attire) but the mask is the thing. Research some fancy dress masks to understand the concept.
http://www.helium.com/items/597008-why-do-some-jewelry-metals-turn-skin-green
you
"925 CID" stamped on jewelry indicates that the piece is made of sterling silver, which is 92.5% silver and 7.5% other metals. The "CID" is a marking used by some manufacturers to identify the silver content of the jewelry.
some silver mining place in australia or new zealand or america but silver is expensive
jewelry silverware and other things.
ANSWER:When you said black ring, is this ring some kind of plastic ring that you can buy from a jewelry store. I had never seen a ring that is black, except gold or silver.
Some percentage of alloyed is mixed with silver to make sterling silver jewelry. What is the name of this alloyed ?
The AK11 some jewelry stands for Alaska Silver. Other marks such as just an AK sometimes stand for a particular jewelry smith.
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