clean with water cleaning silver is very simple. or buy a place to sell back the silver. then you can try these small things,hermes jewelry replica, Pickling can brighten silver ornaments:
1. I think it is still more professional there. the easiest way to use toothpaste and add water to wash the surface. is also the most simple. the black part of the oxide can be completely removed; the re plating can add a protective layer to the silver necklace.
burned with a lighter black silver jewelry (Note: this method is limited to silver (gold and silver jewelry inlaid cannot be used. avoid scratch silver surface) the toothpaste wipe directly wipe in silver, will change silver into silver sulfide.