Last Updated:2025/11/29
Sentence

鉱夫たちはその組成を調べるために、泥質の板岩の裂け目から粘土や酸化鉄と混ざった天然の明礬の柔らかい黄白色の塊を慎重に取り出した。

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The miners carefully extracted the rock butter from the fissures in the argillaceous slate to study its composition.

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The miners carefully extracted the rock butter from the fissures in the argillaceous slate to study its composition.

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Related words

rock butter

Noun
uncountable
Japanese Meaning
天然のアルムと粘土及び酸化鉄が混合された物質で、通常は黄白色の柔らかい塊状となり、粘土質のスレートの空洞や亀裂内に見られる。
What is this buttons?

鉱夫たちはその組成を調べるために、泥質の板岩の裂け目から粘土や酸化鉄と混ざった天然の明礬の柔らかい黄白色の塊を慎重に取り出した。

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