The precious metals include rhodium, palladium, silver, osmium, iridium, gold, and platinum. And they play an important role in jewelry making.
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The role of precious metals in jewelry manufacturing
2010-09-30 09:43:22
Metal jewelry is very popular now especially the precious metals. In this article we will focus on the most popular precious metals used for jewelry: gold, platinum, we will introduce it for you as follows:
Gold: Pure gold and platinum are soft metals which are extremely dense. pure gold is about two and half times heavier than iron and pure platinum is just under three times. While really bright in color pure metals are not suitable for fine jewelry because of their softness. Soft metals are easy to damage,
difficult to polish, and unsuitable for detailed work. This is why they are mixed (alloyed) with other metals, in order to give them the desired properties.
This is also where all this “carats” and confusing numbers come into play. In fact it is pretty simple. All pure metals in nature are white or gray in color except two, gold–bright yellow and copper- reddish pink. Now we go back to precious metals.
Platinum: Platinum is used in almost pure form and 95% hallmarked 950 is a standard alloy. All alloys with pure platinum content of 95.0% or higher can be also marked with the full word “platinum” or “plat.” Other used alloys are 900 (90%), 800 (80%) and 585(58.5) also called karat platinum.
Precious metals, historically, have demonstrated an ability to retain their value even in periods of jewelry manufacturing. What we can believe that all the precious metals are used in the manufacture of jewelry, the demand for which is very much dependent upon the vagaries of fashion and taste.
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