The main gold-carrying minerals are pyrite,chalcopyrite and telluride.The best gold-carrying rock is the biotite-albit schist.
主要的载矿物有矿、铁矿、碲铋矿,含好的岩石类型为只云母钠长片岩。
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The oldest of these is a black rock known as Vishnu Schist.
其中最古老的一种被称为毗湿奴片岩的黑色岩石。
The temperature remained what it had been during our passage through the lava and schists.
持在我们穿过熔岩和片岩的。
I even thought I glimpsed Mt. Sarmiento, whose elevation is 2,070 meters above sea level: a pyramid-shaped block of shale with a very sharp summit.
我望见了萨眠图山,这山高出海面两千零七十米,金字塔形的片岩形成的山,峰顶很尖。
In this eastern gallery made up of lavas, schists, and coal, we have not met with a single particle of moisture.
在这个由熔岩、片岩和煤炭组成的东部走廊里,我们没有遇到过一粒湿气。
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