Very few minerals are ferromagnetic, but hematite is one example.

具有铁磁性很少，但赤铁是一个例子。

The area is a triggy, because it contains an ancient layer of hematite an iron oxide that on Earth usually forms in a spot that held liquid water.

这个区域很奇特，因为它含有一层赤铁，一层氧化铁，在地球上通常会含有水份。

Barely pausing to say hello, he offers him hematite, dried seaweed, and empty shells to grind up for lime and chew with coca leaves.

他几乎都没有停下先进行问候，就立马向他兜售赤铁、干海带，及空贝壳，可磨成灰粉，或和古柯叶子一起嚼。

These lines suggest the presence of hematite, a common substance found in many rocks on Earth.

这些线条表明了赤铁存在，赤铁是地球上许多岩中一种常见质。

There, he gathers ceremonial cactus and herbs like " horse tail, " " stonebreaker, " and valerian, along with the mineral hematite.

在这里，他采集到了仪式用仙人掌和各类药，例如马尾，，和缬，还有赤铁。

We would likely need several Earths worth of highly reflective material like hematite to construct the full system — plus a few more dismantled planets to make a legion of construction robots.

我们很可能需要相当于几个地球储量，如赤这样高反光材料来建造整个系统——再加上几个被拆卸了星球，组建一支机器人施工军团。

Hematites, for example, was one of the earliest coleoids, and it had a cone-shaped shell inside its soft body.

例如， 红铁贝是最早鞘亚纲动之一，它在柔软身体内部有一个锥形壳。

So it's a it's a hematite like substance within that dry stain that they're pretty confident that that's that's related to blood.

所在干燥污渍中，这是一种类似赤铁质，他们非常确信这与血液有关。