olivine

例句：

1. 1. The olivine crystals are embedded in the rock.
   橄榄石晶体嵌入在岩石中。
2. 2. Olivine is a mineral that is found in many types of rocks.
   橄榄石是一种矿物，存在于许多类型的岩石中。
3. 3. The olivine crystals have a beautiful blue color.
   橄榄石晶体具有美丽的蓝色。