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

些线条表明了矿的存，矿是地球上许多岩石中的一种常见物质。

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

具有磁性的矿物很少，但矿是一个例子。

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

例， 矿是最早的胶状体之一，它的软体部有一个锥形壳。

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

，他采集到了仪式用的仙人掌和各类草药，例马尾草，断石草，和缬草，还有矿。

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，就立马向他兜售矿、干海带，以及空贝壳，可以磨成石灰粉，或和古柯叶子一起嚼。

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.

所以干燥的污渍中，是一种类似矿的物质，他们非常确信与血液有关。

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.

个区域很奇特，因为它含有一层矿，一层氧化，地球上通常会含有水份。