manganese rock

例句：

1. 1.The manganese ore is mined from the nearby mines.
   这种锰矿石是从附近的矿场开采出来的。
2. 2. Manganese is a crucial element in the production of steel.
   锰是生产钢铁的关键元素。
3. 3.The mining company has been accused of illegally extracting manganese ore.
   该矿业公司被指控非法开采锰矿石。