Jade jewelry is not reliable in the maintenance of the refrigerator: it will break after thawing

Have you heard the maintenance of jade jewelry in the refrigerator? Is this approach reliable? Yesterday, Fujian jewelry experts told reporters that jade as a valuable item, the wearer needs to be carefully maintained, and improper maintenance methods will cause damage to jade jewelry, there is no scientific basis for the maintenance of the refrigerator.

Buying jade is easy to raise jade. Jade jewelry maintenance has a certain doorway. A recent news said that a foreign aunt listened to the rumors and put the jade bracelet worth 60,000 yuan into the refrigerator to freeze the "maintenance". As a result, after the thawing, the bracelet broke.

“There is no scientific basis for the preservation of jade in the refrigerator.” Jewelry experts from the Fujian Provincial Jadeite Association told the reporter that most consumers do not know the composition of the jade color. The green color of the jade is caused by chromium or omphacite. If the chromium is too much, the jade will turn yellow-green, and if the omphacite is more, it will be blue-green. The composition of omphacite is calcium, aluminum, magnesium and sodium. These metal elements are very active and are very susceptible to oxidation even at normal temperatures. After oxidation, these metals are yellow or gray, which is why the jadeite-containing jade is easily modified. It is for this reason that some people think that putting jade in the refrigerator can reduce the possibility of jade variants. But metal has two states: elemental state and ion state. The ion state is very stable and the elemental state is very active. Aluminum, sodium, potassium, calcium and magnesium are very active metal elements. They are very stable after being ionized. The metals in jade are all ionic, so they are very stable. The average household refrigerator temperature is about -20 ° C, this temperature can not prevent the metal reaction, because the metal and oxygen reaction speed is very fast. Therefore, the jade bracelet is placed in the refrigerator for "maintenance" and will break after thawing.

In this regard, the person in charge of the Fuzhou jewelry inspection structure said that the jade maintenance "fear of cold" is also "fear of heat." Although jade has a high melting point, it must be protected from high temperatures during daily wear. Because the jade is burned, it will increase the internal molecular volume, make the jade metamorphosis, lose moisture, and lighten the color. Therefore, experts advise consumers to try not to wear jade when going to a strong place in Rizhao to avoid excessive sunlight. Avoid cooking jade with high temperature or open flame when cooking. It is best to remove the jade jewelry.

In addition, experts reminded that daily maintenance of jade should be placed separately from diamonds and red sapphires. Because jade has a high hardness, it is easily cracked after collision. Sometimes it cannot be seen by the naked eye, but the molecular structure in the jade surface has been damaged. There are dark cracks, which greatly impairs its perfection and economic value.

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