Last Updated:2025/11/26

During the field study, the geologist carefully documented a sample of poldervaartite, noting its orthorhombic-dipyramidal crystal habit and elemental composition.

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During the field study, the geologist carefully documented a sample of poldervaartite, noting its orthorhombic-dipyramidal crystal habit and elemental composition.

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野外調査で、地質学者はカルシウム・水素・マンガン・酸素・ケイ素を含む、直方晶系の二錐面体構造を持つ鉱物の試料を注意深く記録し、その結晶形と元素組成を観察した。

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