cleiophane

例句：

1. 1. The cleiophane is a rare and valuable gemstone.
   这个克拉文石是一种稀有且珍贵的宝石。
2. 2. Cleiophane is known for its unique color and pattern.
   克拉文石以其独特的颜色和图案而闻名。
3. 3. The cleiophane was discovered in the remote region of the Himalayas.
   克拉文石是在喜马拉雅山脉的偏远地区被发现的。