The night pearl is a rare gem, which was called "following the pearl", "hanging the pearl", "hanging the ridge" and "bright moon pearl" in ancient times. Usually, the luminous pearl refers to fluorescent stone and luminous stone.

It is formed by some luminous substances in the earth after tens of millions of years, from the initial volcanic magma eruption to the later geological movement, gathered in the ore. After processing, the stones containing these luminous rare elements are what people call the night pearl, which is often yellow-green, light blue, orange and other colors. Fluorescent stone under white fluorescent lamp will emit beautiful fluorescence, which is obviously weak in the day and strong at night. In addition, some handicrafts also use the characteristics of fluorite to make some ornaments called "Night Pearl".

"Night Pearl" is a kind of natural gem, which can be seen clearly by human eyes in the dark and can glow by itself.

pearl

Pearl is an ancient organic gem. Mainly produced in mollusks such as pearl shellfish and Pinctada; The calcium carbonate-containing mineral (aragonite) beads produced by endocrine function are composed of a large number of tiny aragonite crystals. According to the research of geology and archaeology, there were pearls on the earth 200 million years ago.