How to distinguish true and false platinum

Platinum is a precious metal that is naturally white. Platinum is 30 times rarer than gold. The annual mining volume of platinum is only one twentieth of that of gold, and the price is naturally much more expensive than gold. There are many colors on the market. Platinum is similar to silver and 18K white gold. How do you tell whether platinum is true or false? Platinum is a precious metal that is naturally white in nature. The rarity of platinum is 30 times that of gold. The annual mining volume of platinum is only one twentieth of that of gold, and the price is naturally much more expensive than gold. There are many silver and 18k white gold that are similar in color to platinum on the market, so how do you tell if platinum is true or false? Diamond Net suggests that distinguishing the true and false of platinum should proceed from the following aspects: Melting point comparison method: The melting point of platinum reaches 1773oc, which is much higher than k platinum and silver. Generally, the welding gun cannot melt platinum, which can be used to identify the authenticity. And the color of platinum does not change after cooling. Specific gravity comparison: The authenticity of platinum can be identified through the weight test of the same volume of material. Platinum has a large specific gravity and a feeling of heaviness. The density is 15-19 or 21.4. The proportion of silver is 10.49. Luster contrast: Platinum is silvery white or off-white, which is between the colors of silver and nickel. Silver has white luster and is easily oxidized with black spots or black; its texture is fine and smooth; its hardness is lower than that of platinum. Listening comparison: When percussive, if you make a'toto' sound without rhyme, it is pure platinum; if you make a sharp sound of'ding-ding' with a sound and rhyme, it is platinum with a lower color. Visual inspection mark: platinum jewelry has standard stamp pt, such as pt950 platinum jewelry with 95% platinum content, and the remaining 5% is other precious metals. Every piece of platinum jewelry should be engraved with a chemical composition stamp, such as (pt900) (pt750). Any stamp beginning with'pt' is a platinum jewelry. 18k diamond ring _pr-7151 How to distinguish true and false platinum? The above methods can easily identify the authenticity of platinum. If you are still not at ease, the national inspection and quality inspection agency is also a good choice. Previous: pt950 platinum wedding ring customization Next: Men's platinum ring style pictures