Silver reacts to sulfur. If you know anything about this element, it’s everywhere. Ve skutečnosti, humans have used sulfides for years! It is in the air we breathe, soil, common beauty products, kouř, fertilizers, foods, gasoline, znečištění…atd. The list is so long there is no way to cover it in a blog, but trust […]
Autorské archivy: Kingjy
There are two commonly used tests to determine the silver content in an alloy. X-ray testing is non-destructive but requires special, expensive equipment. Jewelry must be sent to a lab for x-ray testing. This test is fairly accurate on most silver items. Však, it can be fooled by layered metals and some types of […]
There is a great deal of quality silver coming out of Bali, Thajsko, and Mexico; však, that silver should also be marked and identified with a quality stamp and/or quality disclosure. There are also much lower grade silver alloys from these nations that are described with just the nation of origin. The name of […]
Tibetan silver and many other types of silver described as “tribal” silver etc are base metal alloys that are only silver in appearance. Contents of the alloys vary tremendously and many contain no silver content whatsoever. Some of these imports from exotic lands contain dangerous metals such as lead. Buyer beware. This jewelry should […]
Nickel silver is a bit of a misnomer because “stříbro” describes the color of the metal and not the content. This is a base metal alloy consisting of primarily copper with nickel and/or zinc. This type of silver is an inexpensive base metal that is similar in appearance to sterling but, again, it contains […]
This is a base metal type of silver with an extremely thin plating layer of silver applied to the surface. Even when jewelry is described as fine silver-plated, the overall silver content is a tiny fraction of a percent. Silver-plated jewelry is affordable costume jewelry. Plating can tarnish and will eventually wear off to […]
Silver-filled is a new layered metal that was introduced during the recent surge of silver prices during the recession. It is not an alloy because the metal content is not the same throughout the material. Místo toho, the sterling silver is all on the surface. Silver filled is either 5% nebo 10% sterling silver by […]
Jewelry sold as just “stříbro” is a bit of a mystery. The term is thrown around in the market as a color descriptor, especially in fashion. Však, in the jewelry trade, items should be clearly identified as a specific standard quality. Pokud ne, it is unlikely that the silver alloy is of very high […]
Coin silver was once a more common alloy in the United States. It is now fairly rare and the name causes quite a bit of confusion. The technical “coin silver” alloy is .900 stříbro, nebo 90% stříbro a 10% měď. Jméno “coin silver” is because metalsmiths historically made items from melted down scrap […]
Nezkalené slitiny jsou na trhu poměrně nové. Argentium je jedna značka, ale jsou k dispozici i další, které jsou podobné. Těchto slitin je minimum 92.5% stříbro, i když některé budou mít o něco vyšší obsah stříbra. Zbytek tvoří měď a přídavek prvku germanium. The germanium makes the alloy […]