最終更新日:2025/11/26

During the field trip, the geologist carefully examined a sample of kanonaite and noted its distinctive greenish-black luster under the microscope.

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During the field trip, the geologist carefully examined a sample of kanonaite and noted its distinctive greenish-black luster under the microscope.

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元となった例文

野外調査中、地質学者はアルミニウム、マンガン、酸素、ケイ素を含む緑黒色の斜方双錐形の鉱物の標本を注意深く調べ、顕微鏡でその特徴的な光沢に気付いた。

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