What does "pearl" mean?

Organic gemstones. Pearl is an ancient organic gem, which is mainly produced in mollusks such as Pinctada and Pinctada. The calcium carbonate-containing mineral (aragonite) beads produced by endocrine function consist of a large number of tiny aragonite crystals; Rich in variety, different in shape and colorful; According to the research of geology and archaeology, there were pearls on the earth 200 million years ago. In the international gem circle, pearls are also listed as lucky stones for June birthdays and commemorative stones for 13 and 30th wedding anniversaries. Pearls with magnificent colors and elegant temperament symbolize health, purity, wealth and happiness, and have been loved by people since ancient times.

Typhoon code. On May 9, 2006, the joint typhoon warning center upgraded it to a tropical storm, and the Japanese Meteorological Agency named it "Chanchu" (China and Macau translated as "Pearl"). On May 15, 2006, the Joint Typhoon Warning Center upgraded Pearl to a super typhoon, but it weakened into a typhoon less than 1 day later. After weakening, the pearl began to move northeast and east of China. May 8, 2006 18, 10:28 Pearl weakened into a tropical storm, which swept across the eastern part of China and weakened rapidly. Pearl is the first typhoon and the second tropical storm in the Pacific typhoon season in 2006.

Characters in a Dream of Red Mansions. In the novel A Dream of Red Mansions, there are two pearls: one is Xiren's real name "Zhuer", which was originally an old lady's maid and was later given to Jia Baoyu, and the other is an old lady's maid: No.59 appeared.