What do we understand by mafic composition of rocks?

Dark silicate minerals

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Calcium-rich plagioclase feldspar

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Both A & B

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Only A

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Solution

The correct option is C
Both A & B

A compositional group of igneous rocks in which the rock contains substantial dark silicate minerals and calcium-rich plagioclase feldspar.

The overall look shows basaltic form. Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals.

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