At present, cosmetics have also become one of the indispensable "roles" in people's lives. If it is applied to the skin of the wearing part of gold jewelry, it will undoubtedly provide an opportunity for cosmetics containing chemical substances and gold jewelry that is most afraid of chemical erosion, and the result can be imagined. Some cosmetics also contain some fine hard particles, which can constitute another kind of dirt, thus wearing away gold jewelry. Regional environmental factors may also make gold jewelry lose its bright color. For example, in dry areas, the air contains a lot of primary fine dust, which will form a kind of "human sandpaper" after being polluted by human body, which can abrade gold jewelry into tiny debris and appear local black stains. It is worth mentioning that talcum powder or moisturizer also contains similar particles, which will also overshadow the above-mentioned gold jewelry.
Treatment: Brush with soapy water mixed with a little alcohol, rinse and dry.
Pearl jewelry:
Although the color of pearls looks good, they can't stand the test for a long time. Generally, after several decades, pearls will turn ordinary yellow and lose their beautiful luster. This is what the old saying goes, "people are old and yellow."
Why do pearl ornaments turn yellow after long use? This is mainly because the physical properties of aragonite minerals that make up pearls are unstable. Over time, it will become ordinary calcite. Aragonite and calcite have the same chemical composition, but their crystal morphology and luster are different. This is the reason why pearls change color.
There are some remedies after the pearl turns yellow, that is, soaking in dilute hydrochloric acid can dissolve the yellowed shell and make the pearl reappear its glittering and charming color. But if the color becomes very thick, it is difficult to reverse it.
Wear pearl jewelry after makeup, because any beauty products (powder cake, foundation cream, etc. ) is harmful to pearls, including perfume and hair gel. The pearls worn should be soaked in clear water, washed and dried before storage, otherwise the pearls will turn yellow easily.
Diamond jewelry:
Add water and washing powder to the container, boil your diamond ring in water for 10 minutes to soften the dirt on it, then brush it with a toothbrush, rinse it with clear water, then wash it with 90% alcohol, and finally take it out to dry.
Turquoise jewelry: Be careful when wearing turquoise jewelry, it can absorb oil. Don't wear turquoise jewelry when applying sunscreen or milk. Because once turquoise is dirty, it is difficult to restore it to its original state.
Opal jewelry: It must be kept in a cool place. Because egg stones contain a lot of water, exposure to sunlight or strong light for too long will dehydrate. The nursing method is to soak in water or sweet apricot oil for two days, and it will recover.
In addition to the above general principles, because different gems have different qualities, there are some special requirements and precautions in the maintenance of some jewels. They are introduced as follows:
(1) Gem jewelry such as diamonds, rubies, sapphires, tourmalines and topaz. These gems are hard and can withstand great pressure, but they also have the same shortcomings-they are brittle and cleavage for diamonds and topaz, so these gems can't stand knocking and knocking, otherwise they will collapse due to brittleness, or crack or even break along the cleavage direction due to cleavage. Remember, no matter how hard a diamond is, it can't stand the impact.
(2) Jade jewelry. 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.
(3) Emerald jewelry. 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.
(4) Opal jewelry. 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 points 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.
(5) Amethyst jewelry. 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.
(6) Malachite and turquoise jewelry. 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.
(7) pearls and coral jewelry. 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.
(8) Lapis lazuli jewelry. After lapis lazuli jewelry is dyed, it must not be soaked and cleaned with 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.