Platinum is a natural precious metal with a pure white luster and a dazzling brilliance. It has been around for more than two thousand years since people used platinum. We know that platinum is very pure, so is it as high as gold, the softer the hardness? What is the hardness of platinum, how to identify platinum true and false? Platinum is not as soft as gold. The hardness is softer, because the hardness of platinum itself is very hard, and the purity of platinum itself is very high. Platinum has a hardness between 4 and 4.5 and its density is almost twice that of gold. Therefore, platinum has good toughness and ductility, can be set with precious stones, and is not easy to fall off. The hardness of platinum is now known? So how do we identify the true and false platinum? The main method of identification, look at the mark. Each piece of jewelry will be marked with the relevant material. The platinum mark is Pt, the abbreviation of Platinum Platinum in English, the platinum jewelry marked Pt900 or Pt950, and the number is the platinum fraction of platinum jewelry. According to national standards, it follows every piece of jewelry like an ID card. If you are not sure about the jewelry material, look at the markup. Other methods, look at hardness. We already know that platinum is harder than most metals, so we can try to stencil metal jewelry, if it is clearly scribed, it is not platinum. Metal Keychain,Keychain Custom,Die Cast Keychain Shenzhen MingFengXing Art & Craft Products CO., LTD. , https://www.mf-gift.com