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Definition of Accessory mineral
1. Noun. (minerology) any mineral that is present in small amounts in a rock, but is not considered to be characteristic of the rock ¹
¹ Source: wiktionary.com
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1. Noun. (minerology) any mineral that is present in small amounts in a rock, but is not considered to be characteristic of the rock ¹
¹ Source: wiktionary.com