Night Pearl is very rare treasures, the ancient imperial "With the rosary", "hanging beads, " "vertical spikes", "bright beads. " Fluorescence is professional name of the stone. It is the land of Lane luminescent material after a link from the original magma eruption and then to the geological movement, to gather from ores that contain these luminescence of rare stones, after processing, is put to the legendary luminous pearl. Xue called fluorescence stones, often yellow, and green, light blue, orange and other colors, stone into fluorescence under white fluorescent lamps take a look, It will emit fluorescence beautiful, luminescent obviously the weak performance of the day-night. What is Night Pearl "Night Pearl" is the dark, human eyes can be specified depending on the natural, self-luminescence of jewelry. In ancient times, "Night Pearl, " also known as "luminous Pik", "bright beads. " The famous "Night Pearl", "With the rosary", "Hung Li" and "heavy spikes Zhibi", "GLAUCONITE PHOSPHORITE jade. " Popular among the people of our country "Night Pearl", they have strange luminescence, in the dark environment issued various tokens of brilliant color. "Night Pearl" in the history of civilization in 5000 is the most mystery, the most rare and most precious treasures, private and imperial power. "Night Pearl" has a very deep historical roots and cultural connotations. According to historical records, the Warring States period, "Night Pearl" has been regarded as "the world who, " and with its precious value, "Heshibi" which, priceless. Night Pearl classification "Night Pearl" in accordance with the matrix material can be divided into two broad categories.