蛋白石

例句：

1. 1. The agate isa beautiful gemstone that has been prized for centuries.
   这块蛋白石是一块美丽的宝石，被人们珍视了几个世纪。
2. 2. The agate was found in thecaves of the ancient Egyptians.
   这块蛋白石是在古埃及人的洞穴中发现的。
3. 3. The agate is often used injewelry making due to its unique color andtexture.
   由于其独特的颜色和质地，蛋白石常用于珠宝制作。