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https://www.thoughtco.com/metal-profile-platinum-2340149
Aug 21, 2020 · An Overview of the Properties and Applications of This Dense Metal. Platinum is a dense, stable and rare metal that is often used in jewelry for its attractive, silver-like appearance, as well as in medical, electronic, and chemical applications …
https://www.brilliance.com/education/metals/platinum
Jun 11, 2015 · Pieces marked with a 950 purity are a blend of 95% platinum and 5% alloy metals (usually ruthenium, copper, cobalt, iridium, rhodium, or palladium). 900 Platinum Pieces marked with a 900 purity consist of 90% platinum and 10% alloy metals (usually ruthenium or iridium).
https://www.consumer.ftc.gov/articles/0294-platinum-jewelry
If an item is marked as platinum without any qualification, it should have at least 95% pure platinum (950 parts per thousand). Most platinum jewelry sold in the U.S. is 85% platinum and 15% other metals, either precious platinum group metals and/or base metals. Labels will …
https://www.technology.matthey.com/article/46/2/66-72/
For example, properties such as Young's modulus, elastic limit stress and work hardenability of platinum jewellery alloys are significantly higher than those of the other precious metal jewellery alloys.
https://www.mygemologist.com/learn/jewelry-metals/platinum/
Jul 26, 2013 · Platinum jewelry does not fade or tarnish and keeps its looks for a lifetime. Platinum’s purity makes it hypoallergenic and ideal for those with sensitive skin. All the platinum ever mined would fit in the average living room. Platinum is rare, the coveted treasure of discerning individuals. Platinum is one of the strongest and most enduring metals.
https://www.gemsociety.org/article/jewelry-metals-overview/
Platinum. Platinum Jewelry Use; Platinum Alloys; Common Metallurgy Terms; What are the Noble Metals? 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://eragem.com/news/the-history-of-platinum-jewelry/
Dec 02, 2013 · The very characteristics which make platinum such an ideal metal for fashioning jewelry are the same reasons for its delayed debut in the industry. The lustrous white metal has an astonishing melting point of 3221.6° F, and its durability and strength make it …
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