最終更新日：2024/07/30

(mineralogy) A mineral with the chemical formula Ca₂(Al,Fe⁺⁺⁺)₂O₅, found in metamorphosed limestone.

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brownmillerite

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brownmillerite

noun

(mineralogy) A mineral with the chemical formula Ca₂(Al,Fe⁺⁺⁺)₂O₅, found in metamorphosed limestone.

The brownmillerite is a rare mineral found in volcanic rocks.

意味（1）

(mineralogy) A mineral with the chemical formula Ca₂(Al,Fe⁺⁺⁺)₂O₅, found in metamorphosed limestone.