ichthulin

例句：

1. 1. The ichthulin is a rare mineral found in the ocean.
   这种矿物在海洋中是罕见的。
2. 2. The ichthulin was discovered by a team of scientists during their research expedition.
   科学家们在研究探险中发现了一种矿物。
3. 3. The ichthulin has been used in various industries for its unique properties.
   这种矿物因其独特的性质而被用于各种产业。