Palladium exudes charming brilliance

Types and characteristics of platinum group metals 　　 In the mineral classification, the platinum group element minerals belong to the natural platinum subgroup, including natural element minerals of iridium, rhodium, palladium and platinum. There is a widespread phenomenon of isomorphic substitution between them, thus forming a series of isomorphic mixed crystals. The metals smelted from platinum group minerals include palladium and rhodium. The types and characteristics of platinum group metals are in the classification of minerals. Elemental minerals belong to the natural platinum subgroup, including natural elemental minerals of iridium, rhodium, palladium and platinum. There is widespread isomorphism replacement phenomenon between them, thus forming a series of isomorphism mixed crystals. The metals smelted from platinum group element minerals are palladium, rhodium, iridium, platinum and so on. Platinum and palladium are the two smallest minerals in the platinum family. The metallurgical properties of the two are quite similar. Because they are also rare and have similar uses, they are often used as substitutes for each other in various applications. Moreover, there are only 4 varieties of gold, platinum, palladium and silver in the international precious metal spot and futures trading market. Palladium (palladium): symbol pd, mainly made by smelting natural tin. The color is silvery white, the appearance is similar to platinum, and the metallic luster. The melting point is 1555℃, the hardness is 4-4.5, and the relative density is 12. Lighter than platinum, strong ductility, and slightly harder than platinum (hardness'Mohs' palladium 4.8, platinum 4.3). The chemical property is relatively stable, insoluble in organic acid, cold sulfuric acid or hydrochloric acid, but soluble in nitric acid and aqua regia, it is not easy to oxidize and lose its luster under normal conditions. Although the international palladium price is cheaper than platinum, historically, the international palladium price has been higher than the platinum price by about 100 yuan/gram (the international palladium price was as high as US$1,094/oz on January 26, 2001). Palladium is one of the rarest precious metals in the world. Only a few countries such as Russia and South Africa produce palladium. The total annual output is less than 5% of gold. The international jewelry industry is active due to the unique chemical and physical properties of palladium, which makes the jewelry processing process difficult, easy to splash during smelting, and large gold loss. Therefore, the domestic jewelry industry is rarely used to make processed jewelry. However, due to the foreign jewelry processing industry's mastery of its performance recently, a small amount of palladium has been processed for use as jewelry and decorative art, and it has gradually formed a fashion trend. Internationally, the stamp of palladium jewelry is pd or palladium, and it is represented by the number of thousandths of purity. For example, pd950 means the purity is 950‰, and the specifications of palladium jewelry are marked with pd950, pd900, and pd750. Although platinum and palladium are equally rare, in the international precious metal market, platinum is in short supply and palladium is in excess, and the price of palladium is lower than that of platinum. Whether palladium can make jewelry, facing this unprecedented issue, the Jimeng people began a long journey of searching up and down. However, due to the active chemical and physical properties of palladium, the jewelry processing technology is difficult, and it is easy to splash during smelting, and the gold loss is large. Therefore, palladium is rarely used to process jewelry. And Jimeng people dare to innovate in technology and products, and dare to be the first in the world. After continuous efforts, they have successfully made palladium jewelry with palladium, filling the domestic gap and making palladium jewelry gradually become a fashion trend. Palladium jewelry is rare, pure, noble and elegant! Comparable to platinum, it won't fade after long-term wear. The new darling of fashion! Please look for the pd mark when purchasing. It also has the charming brilliance of platinum. Previous: Palladium is a good thing Next: Palladium and platinum