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https://platinumjewelry.com/why-platinum/pure/
Purity is the game. Platinum Jewelry When you select platinum jewelry, you’re buying a product that consists of a metal that’s almost entirely pure – 90-95%. Mined from deep within the Earth and transformed for jewelry use with a minimum of other ingredients, platinum’s luster, strength and …
https://www.brilliance.com/education/metals/platinum
The most common alloy metals paired with platinum are copper, palladium, rhodium, iridium, and titanium. Although some alloys may be billed as platinum by jewelry sellers, there are stringent requirements for what constitutes a 'pure' platinum piece. Only metals marked with a 950 or 900 purity designation are considered high-grade platinum.Estimated Reading Time: 4 mins
https://www.consumer.ftc.gov/articles/platinum-gold-and-silver-jewelry
Platinum Jewelry Platinum jewelry is rarely made with 100% pure platinum. Instead, platinum is mixed with similar metals or non-precious base metals. Generally, jewelry with a higher percentage of pure platinum is worth more.
https://www.liveabout.com/platinum-jewelry-information-2043747
Aug 17, 2017 · As long as 50% of the alloy contains platinum and some other combination of metals above, the piece can be labeled as containing platinum. If for instance, jewelry contains 50% platinum and 50% gold, that piece can not contain a hallmark indicating the piece contains platinum.Estimated Reading Time: 3 mins
https://www.bluenile.com/education/metal/platinum
Platinum jewelry is very rare; in fact, 30 times more so than gold. Our platinum is 95% pure (5% iridium, palladium, ruthenium, and other alloys), and its purity makes it naturally hypoallergenic, ideal for those with sensitive skin issues. How to Maintain Platinum's Metal Luster
https://www.ganoksin.com/article/platinum-alloy-applications-for-jewelry/
In order to stamp an item “Platinum” in the United States 950 parts per thousand must be platinum. In alloying, the minimum amount of platinum is 500 parts per 1000, and the entire mix must be comprised of 950 parts per thousand Platinum Group Metals or PGM’s.
https://www.gemsociety.org/article/jewelry-metals-overview/
Chemically, noble metals resist oxidation and corrosion in moist air. They also possess varying degrees of resistance to acids. This group includes the following elements: ruthenium, rhodium, palladium, osmium, iridium, gold, silver, and platinum.
https://www.silverrecyclers.com/blog/950-platinum.aspx
The number 950 refers to its level of purity, and it means that your item is 95% platinum and 5% alloy. This number system is an easy way to tell an item's purity. Another example is 900 platinum which is equal to 90% platinum. The alloy used with platinum is typically either copper, rhodium, titanium, palladium, cobalt, or iridium.
https://www.wise-geek.com/what-is-platinum.htm
Platinum is a metallic element with the atomic number 78 and the symbol Pt. On the periodic table of elements, it is found in Group 10 and in Period 6 between iridium and gold. It is referred to as a “transition metal.” It is also one of the “platinum metals,” along with …
https://www.wikihow.com/Identify-Quality-in-Platinum-Rings
Jun 16, 2021 · A composition of 950 parts platinum and 50 parts cobalt is often considered the finest alloy quality for platinum rings. This combination creates an extremely strong and durable ring with a very bright finish, looking almost as if it has been lit from the inside.Views: 129K
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