铁钙辉石

例句：

1. 1. The iron-rich pyroxene is a valuable resource in the mining industry.
   富含铁的辉石是采矿业的重要资源。
2. 2. Pyroxene is a mineral that occurs naturally in many rocks.
   辉石是一种自然存在于许多岩石中的矿物。
3. 3. The pyroxene crystals are transparent and have a beautiful luster.
   辉石晶体透明且有美丽的光泽。