Last Updated:2025/11/26

The mineralogist carefully sampled a vein of jeromite to analyze its composition.

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The mineralogist carefully sampled a vein of jeromite to analyze its composition.

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鉱物学者はその組成を分析するために、ヒ素、セレン、硫黄を含む非晶質の鉱物の脈から慎重に試料を採取した。

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