Because the molecules of gold and platinum are very active, which is why they are very malleable, when storing jewelry, if gold and platinum jewelry are put together, the molecules of the two precious metals can easily dissolve with each other, leading to discoloration, so they should be stored separately.

If it will fade when stored alone, it is necessary to analyze the usual wearing methods. Many people who work in hospitals wear gold jewelry. When they come into contact with it, the water will turn golden green and there will be trachoma, so no matter how stable the chemical composition of precious metals is, they will change color when they encounter strong acid or alkali.