lithosized blue

例句：

1. 1.The blue stone in the garden is very beautiful.
   花园里的那块蓝石非常漂亮。
2. 2.He found a blue stone in the riverbed.
   他在河床里发现了一块蓝石。
3. 3. The blue stone has been passed down through generations.
   这块蓝石已经传了好几代人了。