accessory mineral
accessory mineral
accessory mineral
n.（名词）
A mineral that is present in a minor amount in rocks and is not considered an essential constituent of the rock.
副矿物：岩石中所含的少量矿物，不是岩石的主要成分
accessory mineral
accessory mineral
n.（名词）
A mineral that is present in a minor amount in rocks and is not considered an essential constituent of the rock.
副矿物：岩石中所含的少量矿物，不是岩石的主要成分
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