pittinite

例句：

1. 1.The rock formation is known for its unique pittinite deposits.
   这种岩石的形成以其独特的pittinite矿床而闻名。
2. 2. The study of pittinite has led to important discoveries in the field of mineralogy.
   对pittinite的研究在矿物学领域导致了重要的发现。
3. 3. The mine manager was surprised to find that the pittinite had been mined out years ago.
   矿场经理惊讶地发现，pittinite已经被开采多年了。