Picking jade bracelets under natural light

There are many kinds of jade bracelets on the market. At first glance, it is dazzling. It is very difficult for ordinary people to carry jade identification tools with them. So how do you choose a jade bracelet with a simple method? It depends on the sun.
Pick.......

The code war

The code war The more expensive and more expensive shopping malls are, the more and more online shopping is going on. This has spawned a new group of "code-coding families": in th.......

Reduced activity during the day can also cause insomnia

Core Tip: Many people have the habit of sleeping badly and often dreaming. Dreaming is a normal physiological phenomenon, but if accompanied by insomnia, it may turn into a disease.

Insomnia and dreams are one of the symptoms of insomnia. Patients with insomnia and dreams often los.......

What are gems and jade?

Gems are broadly the most beautiful and rare in the stone. It consists of two major categories of gemstones and jade. Narrow gemstones are single-crystal minerals that are naturally produced (such as natural gold, diamond) or compounds (such as crystal, red and blu.......