Why does the neck dye green after wearing a necklace?

Necklaces should be dyed. If you wear it for a long time, the sweat will turn green on your neck. It is recommended not to wear it.

Some profiteers dye colorless or light-colored inferior jadeite and pass it off as high-grade jadeite.

If it is a silver jewelry necklace, silver will change color when it meets chemicals or sweat. If you touch the necklace when wearing perfume, or when applying foundation, it will turn green as long as it touches chemicals, and the necklace will turn black when it touches chemicals for a long time. You can wash the necklace at the place where it is washed, and the necklace will change back to its original appearance, or you can wash it with toothpaste.

Extended data:

Maintenance of necklace

emerald

Jade jewelry is the most distinctive high-grade jewelry of the Chinese nation, and its maintenance methods are as follows:

(1) Clean frequently. For inlaid jade ornaments, it is best to go to a store to clean them and check the metal claws and hooks in time.

(2) Please do not contact with other precious stones and hard objects to avoid damage.

(3) Always check the knotted knot to prevent it from falling off.

(4) If it is left idle for a long time, it is best to wash it and store it separately.

(5) During strenuous exercise, it is best not to wear accessories.

Gold and silver maintenance

silver

1, the best way to maintain silver jewelry is to wear it every day, because human oil can produce a natural and moist luster.

2. Don't wear other precious metal jewelry when wearing silver jewelry to avoid collision, deformation or wear.

Keep the silver ornaments dry, don't wear them to swim, and don't go near hot springs and seawater. When not in use, you can gently wipe the surface with cotton cloth or paper towel to remove moisture and dirt, and put it in a sealed bag or box to avoid contact with air.

4. If the silver ornaments show signs of yellowing, the easiest way is to gently clean the surface with toothpaste and some water, or clean the fine seams of the silver ornaments with a small jewelry brush, and then gently wipe the surface with a silver cloth, which will immediately restore the original beauty. (If the silver cloth can restore about 80% to 90% of silver, don't use silver lotion and silver washing water, because they are corrosive to some extent, and silver ornaments are more likely to turn yellow after using these products. In addition, silver cloth contains silver maintenance ingredients and cannot be washed with water. )

5. The silverware is seriously yellowed, so it should not be soaked in silver washing water for too long, usually in a few seconds. Rinse with clear water immediately after taking it out, and then dry it with a paper towel.

6. If the silver cloth can recover about 80% silver, there is no need to use silver lotion and silver washing water, because these products are corrosive to some extent, and the silver ornaments will turn yellow more easily after using these products. Silver wipes contain silver maintenance ingredients and cannot be washed.

7. If the silver jewelry is not treated and collected after wearing, it is very likely that the silver jewelry will turn black. At this time, you should use a small jewelry brush to clean the fine seams of jewelry, then drop a drop of silver emulsion on the paper towel to wipe off the black oxide on the surface of jewelry, and then use a silver cloth to restore the original brightness of jewelry. After that, you should remember to do the daily general maintenance to prevent the silver ornaments from turning black again. Silver ornaments are difficult to rub white after many blackening.

golden

1. First, store gold jewelry in jewelry boxes or suede, and get into the habit of not throwing it with other jewelry after wearing it to prevent mutual scratches.

2. Put the precious ornaments in a safe place and buy enough insurance. If you don't know much about the value of your jewelry, please take it to the local jeweler for evaluation.

3. Wash gold ornaments regularly. This can ensure that jewelry presents the best luster and lasts longer. The cleaning method of gold ornaments is the same as other precious ornaments; Use a jewelry cleaner sold in the market, or soak it in soap and water solution, and then gently wipe it with a soft cloth.

4. For the gold jewelry alum inlaid with precious stones, it needs to be cleaned once every six months. Jewelry is adjusted, resized, polished and cleaned by qualified jewelers. In order to maintain your gold professionally, first of all, make sure that the jeweler has a trained gold assembler.

If there are scratches visible to the naked eye, please take the gold jewelry to a qualified jeweler for polishing. All precious metals may leave scratches, and gold is no exception. But there will be a natural oxide layer on the surface of gold, so many people may prefer the surface that has just been polished. If this happens, please give your platinum jewelry to a qualified jeweler and let them re-polish it to produce an extremely bright effect.

6. Please don't wear gold ornaments when doing housework cleaning, gardening and other types of heavy work or physical activities. Because women wearing gold ornaments are easy to contact with bleaching or irritating chemicals when doing housework. Although chemicals will not damage gold, they may discolor diamonds or precious stones.

7. It is best not to wear or reduce the time of wearing gold jewelry in summer, because frequent application or sweat soaking will make blonde hair black, and some women will also cause itchy skin or allergic symptoms.

For some jewelry necklaces, there are some special requirements and precautions in maintenance due to the different qualities of different gems, which are introduced as follows:

(1) Jade necklace. Although jadeite is hard and tough, it has certain impact resistance. However, the processed jadeite products are often thin and will be damaged by impact.

(2) Jade necklace. Emerald is slightly harder than jade, but it is more brittle than jade, and it can't withstand impact and beating more than jade. In addition, emeralds are afraid of high temperature, which will make their colors fade in case of fire and easily burst at high temperature.

(3) Opal necklace. Opal has low hardness, so it should avoid rubbing against other objects. Opal contains water and should be protected from high temperature. Otherwise, after losing water due to evaporation, it will lose transparency and burst. In addition, opal is not acid-resistant, so wear opal jewelry to avoid high temperature and acidic substances. When collecting opal jewelry, we should also pay attention to the environment not to be too dry, otherwise it will also cause dehydration cracking or even rupture. In order to prevent dehydration, in the dry season, opal jewelry should be soaked in water regularly.

(4) Amethyst necklace. The color of amethyst is unstable and will fade when exposed to high temperature or for a long time. Avoid high temperature or exposure during wearing or storage. Natural amethyst is known as the "guardian stone of love", which is noble and elegant and deeply loved.

(5) Malachite and turquoise necklaces. These two kinds of gems are harder than water, so they wear easily. Their chemical properties are unstable and will be corroded and dissolved in acid. Turquoise is particularly easy to change color at high temperature, even if it is exposed to the sun for a long time and soaked in sweat, it will change color. These are all things that must be paid attention to in the process of wearing and collecting.

(6) pearls and coral necklaces. The hardness of pearls and corals is very low, and the surface is easy to lose luster due to friction. Both components are calcium carbonate, which will be corroded and dissolved in acid. It is easy to sweat in summer, and sweating will also damage the surfaces of pearls and corals and lose their original luster. Powder, perfume and hair cream in cosmetics will also make pearls fade gradually.

So it is best not to wear this kind of jewelry in summer. If you get dirty by sweat stains, you can rinse it with clear water and then gently dry it with a soft fabric. Pearl ornaments must be washed with clear water before collection, and the storage place must also avoid cosmetics.

(7) lapis lazuli necklace. After the lapis lazuli necklace is stained, it must not be soaked and washed with clear water. Because lapis lazuli is a granular aggregate composed of various minerals, if it is soaked and washed with water, the dirt on the surface of the gem will penetrate into the interior, thus changing the original luster of lapis lazuli. Lapis lazuli jewelry stained with stains can be gently wiped with a wet cloth to remove the dirt.

platinum

There are generally two cleaning methods for platinum necklaces that get dirty and accumulate dust after being worn for a long time, as follows:

The first method:

Buy a pack of developing powder from a photographic equipment store, put a catty of clear water in a clean glassware after going home, stir it evenly, soak the jewelry, take it out in about 5- 10 minutes, rinse it with clear water, and then wipe it with a dry cloth to make it bright.

Second ways

Take 2 grams of salt, 7 grams of baking soda powder, 8 grams of bleaching powder and 60 ml of clear water, stir well, put the jewelry in, soak it for about two hours, take it out, rinse it with clear water again, and dry it with a cloth. It will be much brighter.

Pay special attention to

There are three main reasons why the gold necklace breaks:

The reason of gold jewelry itself. Gold is a soft precious metal. The higher the purity, the softer it is and the easier it is to deform. Jewelry styles are fashionable and novel, and some special styles are easy to cause some points on the necklace to be deformed and broken for a long time because of the stress structure.

External factors. The maintenance of jewelry is a very important thing. The correct way is to take off the necklace before changing clothes and taking a bath.

Technical factors. The manufacturing technology of some low-end brand jewelry is not enough. If the solder joint technology is poor, there will be problems such as virtual welding, which will easily lead to the fracture of the necklace.

necklace of crystals

As an ornament, crystal necklace has conquered the hearts of countless women with its transparent, dreamy and shining materials and effects.

Classification of crystal necklaces:

Generally divided into amethyst necklaces, topaz necklaces, white necklaces, topaz necklaces, olivine necklaces, green necklaces, smoky necklaces, pink necklaces, black necklaces and crystal necklaces.

Crystal necklace price:

From tens of yuan to hundreds of yuan or even more expensive, depending on the transparency of materials and cutting technology, the collection value of rock crystals is higher.

Maintenance method of crystal necklace

After wearing the crystal necklace, wipe the jewelry with a clean soft cloth to keep its unique luster! If the fingerprint is printed or the crystal is dirty, you can dust off the crystal with a soft cloth without fluff, and gently dust off the crystal to avoid scratching the crystal with the dust on the surface.

Please don't wash the crystal necklace with water to avoid the indelible watermark. Avoid long-term exposure of the crystal necklace to humid air or strong sunlight to prevent the crystal from becoming dim and fading.

Please avoid crystal necklace contacting with chemicals such as detergent, and don't wear crystal ornaments when bathing, washing face, washing hands, washing dishes and swimming.

Remember to wear a crystal necklace after spraying perfume and hairdressing products. Moisture and chemicals will stick to the surface of the crystal, making the crystal dim.

Crystal is fragile. Please handle this crystal necklace with care. Stay away from high temperature. When you don't wear crystal ornaments for a long time, please store them in a separate packaging box or soft cloth bag. Ornaments should not overlap, so as not to collide with each other and scratch the crystal surface.

jasper

In fact, some so-called Hetian jade is Russian jasper, because Russian jasper has a large output and is loved by collectors because of its delicate color. Russian jasper, on the other hand, has a high limestone content, which will turn black and darken after long-term wear. However, the main component of Hetian jade is tremolite, which will become more moist and green after long-term wear. Hetian jade is almost extinct in the market, and it is rare to reach the gem level, and the price is surprisingly high.

Moreover, even if Russian jasper is used for identification, the identification result is Hetian jade, which is difficult to distinguish from ordinary consumption, so I suggest that you don't buy it without being completely sure, but if it is determined to be Hetian jade, and the color is charming and there are few black spots, it is definitely a good collection.

References:

Baidu encyclopedia-necklace