翡翠

例句：

1. 1. The agate is set in the center of the necklace.
   这块玉石镶嵌在项链的中心。
2. 2. The ancient agate carvings are still on display in the museum.
   古老的玉石雕刻仍在博物馆展出。
3. 3. The agate was carved by an ancient artisan.
   这块玉石是由一位古代工匠雕刻的。