Question

how are mineral classified on the basis of their chemical composition​

Answer 1

Explanation:

Since the middle of the 19th century, minerals have been classified on the basis of their chemical composition. Under this scheme, they are divided into classes according to their dominant anion or anionic group (e.g., halides, oxides, and sulfides).

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Answer 2

Minerals are classified as :

Metallic minerals- minerals that contain one or more metals. eg-iron ore

Non-metallic minerals- do not contain any metal substances in them. eg - limestone