tunnerite

例句：

1. 1. The tunnerite is used in the steelmaking process.
   锻矿用于钢铁生产过程。
2. 2. The ore dressing process is crucial for the quality of the final product.
   矿石处理过程对最终产品的质量至关重要。
3. 3. The tunnerite mine is located in a remote area with limited access.
   锻矿矿位于偏远地区，交通不便。