Put the meteorite diamond night pearl in hot water, scald it for a while, then put it in the dark, and it will glow. The luminous time depends on the energy absorption time.

From the point of view of solid state physics, the matrix materials of the mineral "night pearl" are all active crystalline phosphors in inorganic salts. In the dark, the human eye can see clearly, natural and self-luminous jewelry.

The so-called active crystalline phosphor refers to the crystal that has the ability of "emitting light" due to the lattice distortion of the crystal lattice, and this distortion is mostly caused by some heavy metal impurities (activators) contained in the matrix. For example, a small amount of Cu in ZnS can emit yellow-green phosphorescence, which is called matrix and Cu is called activator.

Due to the different activators in active crystalline phosphors, active crystalline phosphors, namely "luminous pearls", can be divided into two types:

1, permanently luminous night pearl: it does not need any external energy excitation, but it can emit light by itself by containing an activator, such as radioactive isotope14c.3h.147pm.226ra.232nd. ..

2. Long-lasting luminous luminous luminous pearl: The activator in the phosphor is not radioactive and must be excited by external sunlight, ultraviolet rays and other light sources to emit light.

Its main component is fluorite with phosphorescence effect and contains some rare earth elements.

If this fluorite is allowed to continuously absorb the energy of the sun during the day, or heated in hot water to give it enough energy, and then placed in a dark place, it can be seen that it shines in a natural state, and its luminous time is limited, which is related to the energy it absorbs. Different luminous pearls contain different rare earth elements, so their radioactivity is different. Some of them are very radioactive.

Extended data

The luminous pearl, also known as "luminous jade, luminous stone and luminous stone" in ancient China, is said to be a rare stone that can shine at night in the world. Some experts pointed out that the "night pearl" is actually fluorite that can emit light.

Relevant authoritative experts from Beijing Zhongbowen Art Testing and Appraisal Center and Shanghai Chundao Art Testing and Appraisal Center respectively identified this meteorite, and they all thought that it was a luminous pearl dating back more than 100 million years, with extremely high research and collection value.

References:

Baidu Encyclopedia-Meteorite Night Pearl