semi precious stones jewelry wholesale india Why is the golden ring fading? What is the reason for silver white?

wholesale weed jewelry This picture is not very clear. It should be encountered by mercury. It is okay to burn it in the gold shop and then polish. There may also be a possibility that you bring the golden ring and the silver ring on the two adjacent fingers, and if you rub each other, you will stick a layer of silver, leading to discoloration. Look at the first possibility of this picture, and the thermometer is destroyed at home? Encounter mercury inside? Intersection