heliolite

例句：

1. 1. The mineral heliolite is used in the production of solar panels.
   黑云母矿物用于生产太阳能板。
2. 2.Heliolite is a rare mineral that can be found only in specific parts of the world.
   黑云母是一种稀有矿物，仅在某些特定地区发现。
3. 3.The black color of heliolite is due to its high iron content.
   黑云母的黑色是由于其高铁含量造成的。