First, the method of comparison
Platinum is grayish white when seen by the naked eye, with a strong texture and a hardness of 4.3. The color of silver is white with the naked eye, the texture is relatively delicate and smooth, and the hardness is lower than platinum, with a hardness of 2.7.
Second, the seal method
Every piece of jewelry has an industry stamp, so if you see the words "PT" or "PLATNUM" or "PLAT" on the jewelry, it is platinum, and if it is "S" or "SILVER", it is silver.
3. Weighing method
This method can be used if the seal is blurred, or if the seal has been removed. The density of platinum is high, and the weight of silver in the same volume is only half that of platinum, so it is easy to distinguish between the two.
Four, the fire method
Sometimes encounter less material, the weight on the hand is not obvious, and there is no seal, so we have to use this method. Platinum heating or fire, after cooling, the color is unchanged; The silver is heated or burned, and after cooling, the color will appear red, or black red.
5. Chemical law
The mercury applied to the jewelry, can not make the mercury attached to platinum, otherwise it is silver jewelry.