No, according to the survey, Park Yun-hee's jewelry display. Beizhu is an ornament, not a pearl. There are two kinds of shell beads, one is made by squeezing and rolling shell powder; One is made of natural seawater shells by grinding and polishing. The surface is coated with a layer of "pearl semen". Not jewelry. Natural pearls will have powder only after scraping, and wiping off the powder will have no effect. Shell beads will peel off when scraping, which will affect the appearance, so there will be no powder when scraping.