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accessory mineral
noun
Petrography.
- a mineral that is present in small amounts in a rock and has no bearing on the classification of the rock, as zircon in granite.
accessory mineral
- A mineral that is present in a minor amount in rocks and is not considered an essential constituent of the rock.
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Example Sentences
Examples have not been reviewed.
It is frequently present as an accessory mineral in sulphide deposits containing ores of gold, copper, silver, lead, and zinc.
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