carnelian

例句：

1. 1.The carnelian gemstone is highly valued for its beauty and durability.
   红宝石因其美丽和耐用而备受珍视。
2. 2.The antique carnelian necklace was a gift from her grandmother.
   这件古董红宝石项链是她的祖母送的。
3. 3.Carnelians are often used in jewelry making due to their rich color and hardness.
   由于其丰富的颜色和硬度，红宝石常用于珠宝制作。