Luminous stone is fluorite: luminous beads were also called "luminous wall, luminous stone and luminous stone" in ancient China. According to legend, it is a rare stone in the world that can shine at night. Some experts pointed out that the "night pearl" is actually fluorite that can emit light. Although China is a big fluorite mineral country, there are not many fluorites that can shine at night, so it is precious and priceless. Joseph Needham, a famous British scholar, recorded in his magnum opus "History of Science and Technology in China" that ancient China people loved the night pearl, because they thought it was spiritual and a treasure of towns and mountains. So people regard it as a precious wealth. It can control the house and drive away all evil. Always keep your family safe and bring good luck. Some people in India call the night pearl "snake-eye stone", and Japanese scientist Ling Mumin sorted out the gem records at 19 16, calling it a sacred gem.

What kind of strange stone is the night pearl? Ancient and modern Chinese and foreign statements are quite inconsistent. According to some experts' research, the night pearl is not as mysterious as some people boast, but several special minerals or rocks, which have been processed by people before they become round beads. The light from the night pearl didn't make the Dragon Palace look like daytime as the myth says. But it will glow after absorbing heat energy (light or hot water shower). In a dark room or at night, it will be appreciated at a higher natural room temperature. 10 minutes later, people can clearly see that it is gradually and actively emitting a shocking whiteness, like a bright moon.

Why does the night pearl give off strong and beautiful light at night? There are different opinions about this. Some gemologists believe that the fluorite of the night pearl is "spiritual" because it is mixed with arsenic sulfide. These two substances "activate" during the day and release energy at night, turning into beautiful luminous. And can continuously emit light for a certain period of time, even permanently emit light. After experiments, if the night pearl can't see the sun during the day, it will shine later at night, and vice versa. Does it strengthen the spirituality of the activator? Different people have different opinions. The above are only the opinions of some experts, which may not be comprehensive and accurate. There are still many mysteries about the night pearl, which experts have not figured out so far, but the reason for the luminescent substances in it is still unclear. In a word: The Night Pearl is still an eternal mystery that has not been completely uncovered.

Noctite contains a lot of phosphorus, so it will glow! !

According to Luan, a gem expert, in the book How to Identify Ancient Jade, the luminous phenomenon of "Night Pearl" is related to the movement of electrons in minerals, and has a great relationship with minerals containing some elemental impurities and crystal defects. When energy (such as light energy) acts on some heterogeneous pumping elements, some electrons are "excited" to jump from low energy band to high energy band. When electrons return from high energy band to low energy band, the obtained energy is released in the form of visible light, thus forming a "night pearl".

1. What is the night pearl?

"Night Pearl" is a common ore called "fluorite" and a rare industrial raw material. Its main component is calcium difluoride, which is a chemical raw material for producing hydrofluoric acid. The night pearl is a crystal. It is difficult to process into a certain shape, but the processing cost is not very large. The main materials of the night pearl are fluorite, calcite and some diamonds, among which fluorite is the most common.

Second, the luminous principle of the night pearl

In physics, the luminous principle of the night pearl is that the phosphorescent stone absorbs external energy after being irradiated in the sun, and then releases this energy in the dark, forming a silvery white luster; This is closely related to trace impurities in mineral crystals.