Last Updated
：2025/11/21
accessory mineral
Noun
Japanese Meaning
岩石中に微量に存在するが、岩石の特性を決定づける主要な鉱物ではない鉱物。 / 岩石の構成には含まれるが、岩石の特徴や性質を示す上で決定的な役割を持たない鉱物。
（ plural ）
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(mineralogy) any mineral that is present in small amounts in a rock, but is not considered to be characteristic of the rock
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accessory mineral
The geologist identified a tiny accessory mineral in the granite that provided clues about the rock's formation.
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The geologist identified a tiny accessory mineral in the granite that provided clues about the rock's formation.
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