tschermakite

例句：

1. 1. The tschermakite mine is a major source of iron ore in the region.
   这个铁石矿是该地区主要的铁矿石来源。
2. 2.The ancient tschermakite buildings are still standing today, testament to their age.
   古老的铁石建筑至今仍然屹立不倒，见证了它们的历史。
3. 3.The tschermakite was mined for centuries before it was discovered by modern science.
   这种矿物被开采了数百年，直到现代科学才将其发现。