1, if there are black spots on the surface of gold, you can use 2g of salt, 7g of baking soda, 8g of bleaching powder and 60ml of clear water to make a "gold cleaner". Put the gold jewelry in a bowl, pour the detergent, take it out after 2 hours, rinse it with clear water (preferably not hard water), bury it in sawdust to dry, and then wipe it with a soft cloth.

2, if you just want to wipe, you can mix salt and vinegar into a cleaner, and use it to wipe pure gold jewelry, which can make it last forever.

Silver cleaning

1. If there are black spots on the silver jewelry, use a small jewelry brush to clean the fine seams of the jewelry, then drop a drop of silver emulsion on the paper towel to wipe off the black oxide on the surface of the silver jewelry, and then use a silver cloth to restore the original brightness of the jewelry.

2. If it is daily cleaning and wiping, you can soak the silver jewelry in a cup of boiling water for a few minutes.

Emerald cleaning

1, daily cleaning, you can wash it with water first and then gently sweep the jade with a horsetail bristle brush.

Diamond cleaning

1. Brush the diamond lightly with a small toothbrush, then put it on the filter screen and rinse it with water. Finally, use a soft cloth to absorb water.

Pearl cleaning

1, simple and clean, you can gently wipe it with sheepskin or delicate flannel with water, and don't use facial tissues, because some facial tissues will wear pearls.

2. If the pearl turns yellow, it can be bleached with 1%- 1.5% hydrogen peroxide.

Agate (chalcedony)

When cleaning agate, you can simply wash it with pure water or soak it in pure water. Agate that keeps humidity looks better. No other detergent is needed to avoid damaging the color of agate surface.

Shoushan stone (colored stone)

Shoushan stone doesn't have many taboos. You can wipe it with clean water when cleaning. Be careful not to be exposed to the sun. After cleaning with clear water, you can gently wipe the dust in the gap with a small toothbrush.