2004年，一个探索机器人发现了黄钾铁矾。

In 2004, an exploration robot discovered jarosite.

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但地球上黄钾铁矾的晶体结构中含有各种微生物。

But jarosite on Earth incorporates all kinds of microorganisms into its crystalline structure.

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黄钾铁矾是一种黄褐色的矿物，它的晶体结构也存在于地球上。

Jarosite is a yellowish-brown mineral with a crystalline structure that's also found on earth.

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