科普：这就是孔克珠(Conch Pearls)之所以成为罕见而昂贵的天然饰品的原因。任何企图人工培育海螺珠的做法，至少迄今为止无一例外都是以失败而告终的。只有在大约50000只海螺里面，人们才能在去肉以后得到一颗可用的海螺珠。因此每年总共最多只能发现2000到3000颗海螺珠。而这其中最多只有20%—30%的海螺珍珠才能用于首饰的加工，也就是这种天然珍珠在全范围内都是非常罕见的主要原因。

Can't sleep began to count sheep: One sheep, two sheep, Three sheep, goat, goat, lazy sheep, goat, little sheep, sea fish, sesame, little material, Flammulina velutipes, shrimp and smooth, wide noodle, large conch, crayfish, grilled oysters...... Like light, light, old Qingdao... Fuck, down the stairs! Don't sleep![馋嘴][馋嘴]

#我是水果味儿的#Can't sleep began to count sheep: One sheep, two sheep, Three sheep, goat, goat, lazy sheep, goat, little sheep, sea fish, sesame, little material, Flammulina velutipes, shrimp and smooth, wide noodle, large conch, crayfish, grilled oysters...... Like light, light, old Qingdao... Fuck, down the stairs! Don't sleep!