There are ways to identify platinum jewelry

There are ways to identify platinum jewelry
Color identification method: the density of platinum than gold large, from the weight it is easy to platinum and gold and other metals distinction. High purity platinum jewelry surface of Qing Baise, soft luster. Mercury identification method: Apply in the jewelry on the mercury, the mercury attached is not really platinum. Asking for a light distinguish true method: red-hot with a kerosene lamp, the jewelry, and after cooling the components of the color black and 70% gray 90% of the composition, color change of the platinum components in more than 95% change black is counterfeit. Platinum Platinum English Translation of the components identified Platinum, abbreviated as Pt or Plat, Pm. Jewelry industry, said the main platinum with Pt. Now on the market to Pt900 and Pt700 platinum jewelry is more common, that is, platinum content of 90% and 75%. Manufacturers generally do in the jewelry on a clear identity.