Two different minerals are known as jade, jadeite and nephrite.

两种不同的矿物称为玉，硬玉和软玉。

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Today more than 4,000 different minerals can be found on Earth. When the planet began to be formed, however, few existed.

地球上目前已发现的矿物超过4000种，然而地球形成之初的矿物种类却寥寥无几。

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Today more than 4, 000 different minerals can be found on Earth. When the planet began to be formed, however, few existed.

地球上目前已发现的矿物超过4000种，然而地球形成之初的矿物种类却寥寥无几。

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Different kinds of clay contain different minerals such as silicon or iron dioxide.

VOA: special.2009.09.09

As an example, Denbow cited discoveries of a number of different minerals in war-torn Afghanistan.

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But because different iron minerals behave differently, scientists must know what iron minerals were present, according to Poulton.

MSN: What green rust did long ago to the big blue ocean

Today a car is built from 39 different nonfuel minerals.

FORBES: Tech's Mineral Infrastructure - Time to Emulate China's Rare Earth Policies