Haematite is a special case of the more general ilmenite structure.

赤铁矿是更为一般的钛铁矿型结构中一个特殊的情况。

We can extract iron from haematite by heating it with carbon in a blast furnace.

我们可以把赤铁矿和碳在鼓风炉内一起加热来提取铁。