ferrogehlenite

例句：

1. 1. This ferrogehlenite is very useful in electronics.
   这种铁氧体在电子学中非常有用。
2. 2.The magnetism of the ferrogehlenite is due to its unique crystal structure.
   铁氧体的磁性是由于其独特的晶体结构造成的。
3. 3. The ferrogehlenite was discovered by accident during a metallurgical experiment.
   铁氧体是在一次冶金实验中偶然发现的。